/ By Stéphane MURE / Cold Chain Guide/ 0 Comments

Passive Thermal Covers: How Is Temperature Preserved?

A passive thermal cover produces neither cold nor heat. It slows the heat exchange between the goods and the surrounding air, so the product temperature drifts slowly instead of tracking the ambient. What holds the product inside its range is the thermal inertia of the load, protected by an insulating and airtight barrier.

Two recent qualification reports on our MET-Q cover, available on request as part of a commercial proposal, put numbers on this: a summer test (climate chamber at 48.32 °C average air, then direct sunlight exposure) and an extreme winter test (chamber at -12 °C). All figures below come from those reports.

What is a passive thermal cover?

A passive thermal cover is a multilayer insulating envelope fitted over a wrapped pallet, completed by a bottom base, with no energy source and no phase change material. Its only job is to restrict heat flow.

Three direct consequences:

  • It never cools a product that is already out of range. A pallet loaded at 28 °C will stay at 28 °C or climb.
  • Its performance is measured in hold duration, not in target temperature.
  • Its effectiveness depends as much on the goods (mass, starting temperature) as on the material itself.

For available sizes and configurations, see our thermal pallet covers page and the article what is a thermal pallet cover.

Passive or active, in one sentence

Passive slows the drift; active compensates for it. A phase change solution such as Mettcool PCM absorbs or releases energy to hold a setpoint over several days, whereas a passive cover typically targets a few hours to a few tens of hours. The decision follows the real exposure time, not the catalogue.

The three mechanisms a cover restricts

Heat moves by conduction, convection and radiation. An effective cover acts on all three, and the METQ technical specifications show how.

Conduction: thickness and trapped air

Conduction crosses the wall. METQ is 15.16 mm thick, with a density of 52.50 kg/m³ and a thermal resistance (R-value) of 0.3877 m²·K/W, obtained by calculation. The higher the R-value, the lower the flow through the wall for a given temperature difference.

Convection: air tightness

This is the most frequently overlooked point. Even limited air exchange cancels the effect of the insulation, because hot or cold air reaches the cases directly. METQ measures 0.0 cm³/s/cm² air permeability (ASTM D737), and the test protocol systematically pairs the cover with a bottom base to close the volume underneath. A cover left open, or fitted without a base, loses a substantial share of its performance.

Radiation: surface emissivity

On a tarmac, a large part of the thermal load arrives as solar radiation rather than through the air. METQ emissivity is 0.16 (ASTM C1371), so the surface re-emits little and reflects part of the incident flux.

Thermal inertia of the load: the deciding factor

For a given material, hold duration is driven by how much product sits under the cover. A fully loaded water pallet takes far longer to change temperature than a half empty one.

That is why both METQ tests ran at minimum load, as a worst case scenario:

  • Summer test: 8.5 % of the pallet volume, that is 384 water bottles of 250 ml across 12 cases.
  • Winter test: 5.4 % of the volume, that is 7,800 water for injection vials of 10 ml across 12 cases.

A shipper loading a pallet to 60 % will see hold durations well above the published values. Conversely, a nearly empty pallet under a cover protects very little.

Why the curve is never linear

Heat flow is proportional to the temperature difference between product and outside. As the product approaches ambient, that difference shrinks and the drift slows. The progression is asymptotic, not linear.

Winter test readings at the coldest point (bottom left corner, chamber at -12 °C) show it:

Product temperature under a passive thermal cover in a -12 °C chamber
Elapsed time Product temperature Change over the hour
0 h 20.5 °C —
1 h 14.6 °C -5.9 °C
2 h 10.1 °C -4.5 °C
3 h 6.9 °C -3.2 °C
4 h 4.5 °C -2.4 °C
6 h 2.0 °C -1.25 °C/h

Practical consequence: a protection duration cannot be scaled up or down by simple proportion. Doubling the temperature gap does not mechanically halve the duration, and extrapolating a 6 hour curve to 24 hours is meaningless.

Damping: the cover filters ambient swings

Beyond total duration, a passive cover smooths out spikes. Two observations from the tests:

  • Summer chamber: air cycles between 45.4 °C and 51.5 °C every hour, a 6 °C swing. Product temperature rises steadily at roughly 0.8 °C per hour, with no visible oscillation.
  • Winter chamber: at 4 h 40 into the test, air jumps from -13.5 °C to -2.1 °C, 11.4 °C in twenty minutes. The product moves from 4.2 °C to 3.8 °C, then 3.9 °C. Effectively no response.

This is what an anti-spike protection is expected to deliver: tarmac transfers, dock door openings and cold chain interruptions lasting tens of minutes get absorbed.

How to qualify a thermal cover: the METTCOVER approach

The method used in both reports is reproducible and gives a fair basis for comparing suppliers.

1. Define the product profile

Here, 15 °C to 25 °C, matching controlled room temperature storage. The profile sets the out of range thresholds, and therefore the pass criterion.

2. Build worst case ambient profiles

Three profiles were used:

  • Hot chamber: 45 °C setpoint, measured average air 48.32 °C, maximum 51.50 °C, MKT 49.70 °C, over 19 hours.
  • Direct sunlight (India, summer): average air 41.66 °C, maximum 44.10 °C, over 8 hours.
  • Cold chamber: -12 °C setpoint, measured average air -11.9 °C, minimum -13.6 °C, over 6 hours.

3. Condition the load

12 hours of stabilisation before the test in both protocols. Without conditioning, the measurement captures the product reaching equilibrium rather than the performance of the cover.

4. Instrument the hot and cold spots

The winter test used 7 calibrated temperature data loggers (top left and right, centre left and right, bottom left and right, plus a probe sensor for ambient air), each identified by serial number. The summer test added two surface measurements, on the outer and inner face of the cover.

Qualification always reports the worst position, never the average. In the winter test, the bottom left corner leaves the range 55 minutes into the run, while the top right corner is still at 17.9 °C. Publishing the average of six sensors would overstate the performance.

5. Record at a fixed interval and compute the metrics

5 minute intervals in winter, 60 minutes in summer. The computed metrics are:

  • ATRR (Average Temperature Raise Rate): average time needed to gain 1 °C, in min/°C.
  • ATDR (Average Temperature Drop Rate): the equivalent for losing 1 °C.
  • Time inside the product range, per sensor position.
  • MKT, which weights thermal exposure according to its kinetic effect on the product. Calculation detail in our article on mean kinetic temperature.

6. Document metrological traceability

Both reports include calibration certificates for the loggers and for the climate chamber. The chamber certificate references the ITS-90 scale with a stated uncertainty at k=2 (roughly 95 % confidence). Without that chain, the figures do not stand up in an audit, in particular against GDP requirements for pharmaceutical distribution.

METQ test results

METQ qualification results in hot chamber, direct sunlight and extreme winter conditions
Test Ambient Load Time inside 15/25 °C Average rate
Hot chamber 48.32 °C average air 8.5 % 11 h (bottom and centre corners), 9 h (top corner) ATRR 65.70 min/°C
Direct sunlight 41.66 °C average air 8.5 % 5 h (bottom and centre corners), 3 h (top corner) ATRR 38.91 min/°C
Extreme winter -11.9 °C average air 5.4 % 55 min above 15 °C ATDR 19.5 min/°C
One clarification: the tests were run on the METQ grade with different loads (8.5 % against 5.4 %). The three rows are therefore not directly comparable with one another. They describe three exposures, not a ranking.

The counterintuitive result: sunlight is harsher than the hot chamber

Air was cooler under direct sunlight (41.66 °C) than in the chamber (48.32 °C), yet protection lasted half as long. The measured surface temperatures explain it:

Thermal cover surface temperatures in hot chamber versus direct solar radiation
Measurement Hot chamber Direct sunlight
Average ambient air 48.32 °C 41.66 °C
Cover outer surface 43.97 °C 47.78 °C
Cover inner surface 36.94 °C 55.38 °C
Peak inner surface 40.30 °C 64.20 °C

In the chamber, the inner face stays 11 °C below the air: the cover is doing its job as a convective barrier. Under direct radiation, the inner face rises above the outer face and peaks at 64.20 °C, because the outer wall absorbs the solar flux while being partly cooled by moving air, whereas the inner volume is confined.

What this means for sizing: on a tarmac, air temperature is not the right input variable. Radiative load drives the outcome. A calculation based on weather forecasts alone will systematically understate real exposure.

What these results do not say

Both reports state it explicitly: the tests run in a controlled environment, and the manufacturer accepts no liability for excursions occurring during live shipments. Chamber qualification does not replace field qualification.

Three systematic gaps between laboratory and shipment:

  • Vibration and handling open or displace covers that are not properly secured.
  • Real profiles alternate between pressurised hold, tarmac and warehouse, with harsher transitions than a fixed setpoint.
  • Humidity, rain and wind change surface exchanges. METQ shows 919 cm H2O water pressure resistance (ISO 811:2018) and a moisture vapour transmission rate of 0.0156 g/m²/day (ASTM E96), but those values characterise the material, not the closed shipping unit.

The recommended approach is to instrument the first live shipments with USB temperature data loggers or real-time GPS temperature trackers, then cross check the readings against the qualification data.

FAQ

Does a passive thermal cover keep goods cold without electricity?

Yes, but it never produces cold. It slows the warming of a product that is already at the right temperature. No energy is consumed, and the cover needs no pre-conditioning.

How long does a thermal cover protect a pallet?

From a few hours to more than a day, depending on exposure and load. In the METQ minimum load tests, protection inside the 15/25 °C range lasted 11 hours in a 48 °C chamber, 5 hours in direct sunlight and 55 minutes in a -12 °C chamber. A fuller pallet holds longer.

What does ATRR mean?

Average Temperature Raise Rate: the average time, in minutes, for the product to gain 1 °C. An ATRR of 65.70 min/°C means roughly 66 minutes per degree gained. The higher the value, the better the insulation under the tested conditions.

Why test with a minimum load?

Because a lightly loaded pallet has little thermal inertia and represents the worst case. Results obtained at 5.4 % or 8.5 % load set a performance floor: real shipments, being fuller, will do better.

Why can the inner face of the cover be hotter than the outer face?

Under direct solar radiation only. The outer wall absorbs the solar flux and is partly cooled by convection with moving air, while the inner face re-emits into a confined volume with no way to release the heat. METQ measurements give 47.78 °C average outside against 55.38 °C inside.

Is a bottom base required with the cover?

Yes. Both METQ tests ran with cover plus bottom base. Without closure underneath, air circulates through the pallet and short circuits the insulation, which invalidates the stated hold durations.

Need to size thermal protection for a specific lane? Send us your product profile, exposure duration and pallet fill rate, and we will identify the right grade and the matching qualification data.

Request technical advice

See also: our thermal protection range and insulation kits for containers.

/ By Stéphane MURE / Cold Chain Guide/ 0 Comments

Common Mistakes to Avoid When Using Temperature Data Loggers in the Cold Chain

Common Mistakes to Avoid When Using Temperature Data Loggers in the Cold Chain

In the cold chain industry, where sensitive products such as food, pharmaceuticals, and chemicals are transported and stored at strictly controlled temperatures, the use of temperature data loggers is essential. These devices allow real-time monitoring of temperature conditions, ensuring product quality throughout their journey. However, despite their power, errors can occur that compromise the effectiveness of temperature monitoring and, consequently, product safety. Here are the common mistakes to avoid.

1. Using Non-Calibrated Data Loggers or Those Without a Calibration Certificate

One of the most serious mistakes in using temperature data loggers is failing to use calibrated or certified devices. Data loggers that are not properly calibrated or lack a calibration certificate can provide erroneous data, which can skew the entire cold chain control process. This is especially true for lower-quality data loggers, often low-cost models, which do not guarantee the accuracy required for sensitive products such as medicines or food. Using these devices can lead to serious consequences in the event of an audit or regulatory check.

2. Failing to Start the Temperature Data Logger Correctly

Incorrectly starting the temperature data logger before use is a critical mistake. While many modern data loggers are easy to start by pressing a “start” button, some devices may display a fault signal at startup that can go unnoticed if the user is not trained to recognize it. It is essential to provide clear instructions to ensure the logger is working properly before transport begins. Neglecting this step can compromise the reliability of the collected data, particularly if the logger does not start recording or encounters an undetected issue.

3. Not Checking the Settings and Internal Clock of the Data Logger

Forgetting to check the initial settings and internal clock of the data logger can cause major errors in the collected data. If the internal clock of the data logger is incorrectly set or if the configuration does not align with the specific transport requirements, this can distort temperature recording and make accurate data analysis difficult. It is imperative to ensure that the settings and internal clock are properly checked and adjusted before starting the recording.

4. Incorrect Placement of the Temperature Data Logger

The placement of the temperature data logger plays a crucial role in the accuracy of the collected data. Placing the logger in a poorly ventilated area, near a heat source, or in a location isolated from the product can result in erroneous readings, distorting the representation of the temperature conditions experienced by the products. Therefore, it is essential to strategically place the logger so that it measures temperature conditions that are representative of the transport or storage environment, ideally at the center of the product lot.

5. Failing to Link the Data Logger’s Serial Number with the Shipment or Lot Identification

Not establishing a clear link between the serial number of the data logger and the identification of the shipment or product lot is a commonly overlooked mistake, yet it can make traceability difficult in the event of an inspection. For optimal cold chain management, it is essential to associate each data logger with a specific shipment or lot, thus facilitating the retrieval of relevant data and ensuring transparency during audits. Complete traceability ensures that temperature data can be linked to specific products, guaranteeing their safety and compliance.

6. Not Using a Data Storage System for Future Audits

Single-use temperature data loggers are designed to store critical data during transport, but often, an effective system for retrieving this information post-shipment is neglected. Failing to retain or improperly storing the data can pose a problem during audits or compliance checks. It is crucial to quickly transfer the collected data to a secure storage system, where it can be accessed years after transport if necessary.

7. Not Considering the Storage Conditions of Data Loggers Before Use

A commonly overlooked error is storing data loggers in inappropriate conditions before use. For example, failing to consider that extreme temperatures can damage the batteries and affect the performance of the loggers. It is essential to store the loggers in a room-temperature environment and allow them to stabilize before starting the data recording. If the logger is too cold, it should stabilize to ambient temperature before beginning data recording. Additionally, it is recommended to transport the loggers in an insulated box, rather than in a pocket or by hand, as this could heat up the device and skew the readings.

8. Not Indicating the Location of the Data Loggers in the Shipment

Another common mistake is not clearly indicating the location of the data loggers in the shipment. If the logger is placed inside a complete box or in a difficult-to-locate spot, it may be challenging for the recipient to quickly find it upon arrival, delaying access to the data. Therefore, it is crucial to specify the logger’s location in the shipping documents or even mark the location on the packaging. This ensures that the logger can be quickly located, facilitating the retrieval of the data.

Conclusion

Using temperature data loggers in the cold chain is essential to ensure the safety of transported products, but common mistakes can compromise their effectiveness. By choosing calibrated and certified data loggers, starting devices correctly, verifying their settings, placing the loggers in the right locations, and ensuring complete traceability, businesses can avoid costly errors. Furthermore, it is crucial to properly store the data and adhere to the recommended storage conditions for the loggers to optimize temperature monitoring. By avoiding these mistakes, businesses can ensure the safety of their products, improve logistical performance, comply with regulations, and strengthen customer trust.

/ By Stéphane MURE / Tech & Innovations/ 0 Comments

Single-Use vs. Reusable Temperature Loggers in Cold Chain Monitoring

Advantages and Disadvantages of Single-Use vs. Reusable Temperature Loggers in Cold Chain Monitoring

Introduction

In cold chain monitoring, which is crucial to ensure the safety and efficacy of temperature-sensitive products, temperature loggers play a central role. These devices track and record temperature fluctuations throughout the transportation and storage of sensitive goods such as pharmaceuticals, vaccines, food products, and other perishable items. Depending on the specific needs, temperature loggers can be classified into two main categories: single-use and reusable. Each of these types presents advantages and disadvantages, which influence the choice of device based on specific cold chain monitoring requirements.

Single-Use Temperature Loggers

Single-use temperature loggers are devices that, once used to record temperature data, cannot be reused. They are typically discarded after completing the transport or storage phase.

Advantages of Single-Use Loggers

  1. Ease of Use and Management
    Single-use loggers are extremely simple to use. Once activated, they automatically record temperature data during transport or storage. There is no need for complex interventions or adjustments, making them easy to adopt, even for users with limited experience.
  2. Lower Initial Cost
    Compared to reusable loggers, single-use loggers generally have a lower upfront cost. This can be an important advantage for businesses that handle a high volume of shipments and seek to reduce initial expenditures.
  3. No Data Integrity Concerns
    Designed for a single use, these loggers are specifically calibrated for tracking a single shipment. This guarantees that no data is altered by prolonged use or data overload.
  4. Compliance with Regulatory Requirements
    Single-use loggers are particularly useful in highly regulated sectors, such as the pharmaceutical industry, where providing irrefutable proof of transport conditions for each shipment is critical.

Disadvantages of Single-Use Loggers

  1. High Recurring Costs
    While the initial cost is lower, the repeated purchase of single-use loggers for each shipment can lead to significant recurring costs, especially for businesses with frequent shipments.
  2. Inefficiency for Long-Term Use
    Single-use loggers are not suited for long-term needs as they are discarded after each use. For companies with continuous monitoring needs over an extended period, this solution is not cost-effective.
  3. Environmental Impact
    Constant disposal of single-use loggers increases electronic waste production, which can have a significant environmental impact. Additionally, managing this waste can be a challenge for businesses aiming for sustainability.

Reusable Temperature Loggers

Reusable temperature loggers are devices designed for multiple uses. After completing the temperature recording, the data is extracted, and the logger can be reused for other shipments.

Advantages of Reusable Loggers

  1. Lower Long-Term Costs
    Although reusable loggers have a higher upfront cost, their continued use makes them more economical in the long run. Once purchased, there is no need to spend money on new loggers for each shipment, resulting in substantial savings for businesses with high shipment volumes.
  2. Reduced Electronic Waste
    One of the main environmental benefits of reusable loggers is the reduction of electronic waste. Since these devices can be used repeatedly, they generate less waste compared to single-use loggers, contributing to more sustainable practices.
  3. Long-Term Monitoring and Maintenance
    Reusable loggers allow for continuous monitoring and maintenance if needed. They can be recalibrated to ensure they remain reliable and accurate over time, ensuring that cold chain requirements are consistently met.
  4. Flexibility and Customization
    Reusable loggers are often equipped with advanced features, such as multiple sensors and connectivity options (e.g., Bluetooth or USB). These capabilities offer greater flexibility and customization for monitoring systems tailored to specific business needs.

Disadvantages of Reusable Loggers

  1. High Initial Cost
    One of the main disadvantages of reusable loggers is their high purchase cost. This can be prohibitive for small businesses or those that do not have a high volume of shipments to justify the investment.
  2. Maintenance and Data Management
    Although reusable, these devices require regular management, including data collection, maintenance, and sometimes recalibration. These processes can incur additional costs and resources, particularly in terms of managing inventory and validating the reliability of the devices.
  3. Risk of Degradation or Failure
    As with any electronic device, reusable loggers are susceptible to degradation or failure over time, especially if subjected to extreme transport conditions. If a reusable logger is poorly maintained or malfunctions, it may provide inaccurate data, compromising the cold chain monitoring process.

Conclusion

Single-use and reusable temperature loggers each have their advantages and disadvantages in cold chain monitoring. The choice between these two types depends on several factors, including the volume of shipments, regulatory requirements, budget, and environmental impact. While single-use loggers are ideal for one-off solutions and quick compliance, reusable loggers are better suited for long-term monitoring needs, offering substantial savings and better resource management over time.

Companies should carefully evaluate their specific requirements to determine which type of logger is best suited for their supply chain.

/ By Stéphane MURE / Regulations & Standards/ 0 Comments

What is Mean Kinetic Temperature (MKT)?

Mean Kinetic Temperature (MKT): A Scientific Explanation

What is Mean Kinetic Temperature (MKT)?

Mean Kinetic Temperature (MKT) is a calculated value that estimates the overall impact of temperature variations on temperature-sensitive products during storage and transportation. In other words, MKT represents an equivalent average temperature that simulates the effect of temperature fluctuations on a product over its lifecycle, taking into account not only the extreme temperatures but also the duration of each exposure.

MKT is particularly used in industries such as pharmaceuticals, biopharmaceuticals, food, and other sectors where products are sensitive to temperature changes. These products can undergo chemical or physical alterations due to temperature fluctuations, compromising their quality, effectiveness, or safety. MKT provides a better understanding of the global thermal impact on these products, even if the actual temperature varies over time.

Why is MKT Important?

MKT is a valuable indicator in evaluating the integrity of temperature-sensitive products. Unlike simple average temperature, which does not account for temperature variations or their duration, MKT takes into consideration the cumulative effect of temperature fluctuations, assigning more weight to periods of higher temperatures, which are generally more damaging to the products.

This indicator helps manufacturers, distributors, and regulators determine if a product has been exposed to temperature conditions that could affect its characteristics (such as stability, effectiveness, or safety) during transport or storage. Moreover, in industries dealing with products like medications, vaccines, or perishable goods, MKT provides a reliable method to ensure that products remain within required temperature ranges throughout their supply chain.

How to Calculate MKT?

The calculation of Mean Kinetic Temperature involves using a formula that combines measured temperatures at various times and the duration of exposure to those temperatures. The standard formula used to calculate MKT is as follows:

where:

  • T_i is the temperature measured at time i (expressed in degrees Celsius or Fahrenheit).
  • Δt_i is the duration for which temperature T_i was maintained (expressed in hours, minutes, or seconds).
  • n is the number of measurements taken during the studied period.

However, for a more precise calculation of MKT, especially when considering the effect of each temperature variation on the product’s stability, a formula that incorporates the concept of thermal activation factor (often based on Arrhenius-type equations) is commonly used. The more advanced formula, integrating this factor, is:

where:

  • T_i is the temperature measured at a given moment,
  • Δt_i is the duration of exposure to that temperature,
  • τ is a time constant, representing the average exposure duration of the product to a given temperature,
  • a is an empirical parameter that represents the product’s sensitivity to temperature variations (often estimated through laboratory studies on product stability).

This more complex model allows for weighting the impact of periods during which the product is exposed to extreme temperatures (e.g., high or low temperatures), which are typically more harmful than periods at moderate temperatures.

To simplify this process, Thermolabo offers temperature data loggers that automatically calculate MKT. These tools are designed for professionals who demand traceability and precision in temperature monitoring.

Practical Applications of MKT

Mean Kinetic Temperature is widely used in industries where thermal management is critical. In the pharmaceutical field, for instance, medications or vaccines requiring strict cold chain management can be monitored using MKT. If the temperature exceeds specified limits for a significant duration, MKT can indicate a risk of product degradation.

In the food industry, MKT is used to ensure that perishable goods such as meat or dairy products are stored and transported at safe temperatures, preventing bacterial growth and other temperature-related alterations.

Conclusion

Mean Kinetic Temperature (MKT) is a crucial concept for assessing the thermal impact on temperature-sensitive products. By accounting for the cumulative effect of thermal fluctuations, MKT provides a reliable method for ensuring product quality and effectiveness while meeting regulatory standards. When calculated properly, MKT offers valuable data for improving supply chain management and logistics of temperature-sensitive products, whether they are medications, food items, or other goods sensitive to temperature.

/ By Stéphane MURE / Protection Solutions/ 0 Comments

What is a Thermal Pallet Cover?

Everything You Need to Know About Thermal Pallet Covers: Effective Protection for Your Sensitive Goods

Thermal pallet covers, also known as insulating covers or thermo-insulating covers, are essential solutions for managing the transport of temperature-sensitive goods. These specially designed covers provide optimal protection against temperature fluctuations, which is critical for ensuring the quality and safety of sensitive products during transit. In this article, we explain what thermal pallet covers are, their key features, and why they are a strategic choice for your temperature-sensitive shipments.

What is a Thermal Pallet Cover?

A thermal pallet cover is a specially designed cover intended to wrap around pallets of goods to protect them from temperature variations. These covers are made from materials with low thermal conductivity, meaning they prevent heat transfer. Thanks to this property, they limit the impact of external temperatures on the products they protect.

The primary function of these covers is to shield temperature-sensitive goods from heat or cold during transport, particularly in situations where external conditions can be extreme, such as during handling breaks or prolonged stops on airport tarmacs under the sun. Thermal pallet covers act as an insulating and reflective barrier to maintain a stable internal temperature within the pallet.

How Does a Thermal Pallet Cover Work?

Thermal covers are typically made with materials that have high reflectivity. This means they can reflect radiant heat and minimize heat absorption by the products they cover. Reflectivity is often achieved by using pure aluminum reflective layers or materials with silver-coated outer surfaces.

These features make thermal covers highly effective thermal insulators. By reducing the amount of heat that penetrates the cover, they help maintain the quality of sensitive products and ensure their proper preservation throughout the transit process, even when external conditions are variable.

Benefits of Thermal Pallet Covers

Insulating covers offer numerous benefits when it comes to transporting temperature-sensitive goods. Here are some of the main advantages:

  1. Protection Against Temperature Fluctuations: Thermal covers reduce the impact of external temperatures on your products, ensuring they stay within the required temperature range during transport. This is especially crucial for pharmaceutical products, perishable goods, and electronics, which can quickly degrade if exposed to inappropriate temperature conditions.
  2. Reduced Risk of Product Degradation: By reflecting heat and reducing the internal temperature of the pallet, these covers minimize the risk of product degradation, which is vital for preserving the efficacy, freshness, and integrity of sensitive goods.
  3. Ease of Use: Thermal covers are easy to install and use, offering a simple yet highly effective solution to ensure the protection of temperature-sensitive products during transport.
  4. Cost Reduction Related to Product Deterioration: By better protecting temperature-sensitive products, thermal pallet covers help limit losses and claims, which in turn reduces costs related to product returns or quality issues.

Applications of Thermal Pallet Covers

Thermal covers are used across a variety of industries where temperature is a critical factor for the preservation of goods. Some of the main applications include:

  • Pharmaceutical Industry: Medicines, vaccines, and other pharmaceutical products must be transported at specific temperatures. Thermal pallet covers ensure the necessary protection to prevent these products from being affected by temperature fluctuations, guaranteeing their efficacy upon arrival.
  • Agriculture and Food Industry: Fruits, vegetables, meat, and other perishable goods require careful temperature management to maintain their freshness. Thermal covers help extend their shelf life during transport.
  • Chemical Products: Chemicals, glues, paints, and varnishes can be sensitive to temperature variations. Using thermal covers helps protect these products from freezing or overheating.
  • Electronics: Electronic devices and computer components are often sensitive to humidity and temperature fluctuations. Thermal covers offer effective protection against these risks.
  • Artwork: Temperature and humidity need to be carefully controlled when transporting artwork to prevent degradation. Thermal covers are used to provide this protection.

Example of Thermal Cover Performance

A real-life example of the effectiveness of thermal pallet covers is the case of Mettcover thermal covers. During a transport from Dubai to New Jersey, Mettcover thermal covers helped maintain the internal temperature of the pallet between 15°C and 25°C even during a challenging journey with delays on the tarmac. This scenario shows how these covers help protect the cargo effectively, even in difficult transport conditions, especially in air transport, where goods can be exposed to extreme temperatures for hours.

Conclusion: Investing in Thermal Pallet Covers

Thermal pallet covers are an essential solution for protecting your temperature-sensitive goods during transport. Their effectiveness in maintaining a stable temperature, reducing the risk of product degradation, and offering protection against temperature fluctuations make them a strategic choice for businesses in the pharmaceutical, food, chemical, and electronics industries, among others. By using these insulating covers, you ensure the safety and quality of your products while minimizing costs associated with returns and product deterioration.

Discover our thermal pallet cover solutions and ensure optimal protection for your products during transport. Click HERE for more information.

/ By Stéphane MURE / Cold Chain Guide/ 0 Comments

5 Essential Tips for Efficient Temperature-Controlled Shipments

5 Essential Tips for Efficient Temperature-Controlled Shipments

Organizing a temperature-controlled shipment is a complex operation, and managing data loggers can often feel like an unnecessary burden. However, ensuring the safety and quality of temperature-sensitive products during transport is paramount. To help streamline this process and avoid potential complications, here are five essential tips to optimize your temperature-controlled shipments and effectively manage your temperature data loggers.

1) Notify Your Recipient

While it may seem obvious, always inform your recipient about the required storage temperature range of your products. This ensures they are fully aware of the specific conditions needed for proper storage and handling upon arrival.

Additionally, make sure they are aware of the presence of a temperature data logger in your shipment. It’s important to confirm that the recipient can easily read the data logger as soon as they receive the shipment and quickly send you the temperature data.

Don’t fall into the trap of assuming all USB temperature data loggers are universally readable. Many companies, due to security concerns, no longer allow the use of removable USB drives. This oversight can lead to a return of your shipment at your expense. Confirm that the recipient is equipped to handle your data logger before shipping.

Finally, ensure that both parties are in agreement on the procedure in case of a temperature excursion, as well as the responsibilities involved in addressing such situations.

2) Position Your Data Logger Closely to the Product

Place your temperature data logger as close as possible to the product, ideally at the center of the packaging. Smaller-sized data loggers are perfect for this, as they can easily fit within the core of the shipping boxes.

Why is this important? Temperature fluctuations that affect the outer layers of packaging often don’t impact the product itself due to insulation from the surrounding materials. However, if the data logger is placed on the exterior of the package, it will directly experience temperature changes, which can lead to false alarms and temperature excursion reports.

If you’re using passive cold chain packaging (e.g., isothermal boxes), ensure the data logger isn’t in direct contact with the cold source. This could cause an extreme excursion in temperature and skew the results.

3) Indicate the Data Logger’s Position Clearly

Make sure that your temperature data logger is accompanied by a clear positioning label that specifies its exact location within the shipment. This will help the recipient easily locate it upon arrival.

In logistics, particularly with co-loading shipments, your package may be mixed in with many others, making it harder to track the data logger. Some logistics professionals have reported that finding a single data logger in a large truck can take up to two days—if it’s even located at all.

During this time, the shipment may be put in quarantine, or worse, the products may need to be reanalyzed due to missing information. This can be particularly detrimental if the products are urgently needed, such as in pharmaceutical shipments where patients may be waiting.

4) Establish Robust Traceability Between Your Data Logger and Products

It’s crucial that you can provide proof that the temperature data you report during audits corresponds accurately to the products being shipped. This means creating a link between each data logger and its associated product batch.

Unfortunately, many shipments rely on manually recorded serial numbers for their data loggers, which can result in mistakes due to illegibility, incorrect entries, or incomplete information. To avoid this, use a fully digital system, such as Sensolabo®, which allows for secure and easy tracking through barcode scanning.

By linking the barcode of the pallet or box with the data logger, you can effortlessly maintain traceability, ensuring you have complete and accurate records for each shipment.

5) Ensure Your Data Loggers Are Functioning Properly Before Shipping

Before shipping, always check that your data loggers are fully functional. Use data loggers equipped with visible indicators, such as LED lights, to confirm that they are activated and recording as intended.

Also, pay close attention to the calibration and expiration dates of your temperature data loggers to ensure they will remain accurate throughout the transport process. As the battery or power source ages, it can lose performance, which might lead to inaccurate temperature readings during the shipment.

It’s also important to consider that data loggers—like any electronic device—can malfunction due to extreme conditions during transport, or even suffer damage through mishandling. To mitigate the risk of lost data, it’s advisable to use multiple data loggers for shipments containing several pallets or boxes. This ensures that, in the event of a failure, you won’t be left without vital temperature data upon arrival.

Conclusion

Effectively managing temperature-controlled shipments requires careful attention to detail, especially when it comes to handling data loggers. By following these five tips—informing your recipient, positioning your data logger correctly, establishing clear traceability, ensuring proper functionality, and using multiple loggers for added security—you can avoid common pitfalls and ensure the safe, compliant, and efficient transport of temperature-sensitive products.

By implementing these strategies, you can streamline your cold chain processes, reduce the risk of costly errors, and ultimately safeguard the quality and safety of your products.

/ By Stéphane MURE / Regulations & Standards/ 0 Comments

Why Monitoring the Temperature of Your Temperature-Controlled Shipments?

Why You Must Monitor the Temperature of Your Temperature-Controlled Shipments?

Cold chain management is essential in numerous industries, particularly in the pharmaceutical, food, and medical sectors. A fundamental aspect of this management is the precise monitoring of temperature-sensitive products during transport. Temperature-sensitive products such as medications, vaccines, food, and biological samples require strictly controlled conditions to ensure their safety, efficacy, and quality. To achieve this, using a temperature data logger is essential. But why is it so important to monitor temperature during temperature-controlled transport? This article explores the reasons why temperature monitoring is critical and how a temperature data logger can help ensure the compliance and safety of your products.

1. Ensure the Safety of Temperature-Sensitive Products

Temperature-sensitive products, whether they are medications, vaccines, food, or biological samples, can be altered or lose effectiveness if exposed to inappropriate temperatures. A simple temperature deviation can result in the degradation of the product, leading to serious consequences. For instance, vaccines must be transported and stored under very specific conditions, and any temperature fluctuation can compromise their efficacy, putting patients’ health at risk.

Temperature data loggers allow for real-time tracking of the temperature of products throughout transportation, ensuring that they remain in optimal conditions. This not only helps prevent the loss of product quality but also ensures the safety of the consumers receiving those products.

2. Comply with Regulations and Standards

In many industries, particularly in the pharmaceutical and food sectors, adhering to regulations and standards is imperative. Cold chain transport regulations are strict, and they require documentation, monitoring, and ensuring that products are properly conserved. Failing to meet these requirements can lead to penalties, fines, or even the loss of commercial licenses.

Using a temperature data logger enables the collection of precise, traceable data on transport conditions. This data can be used to prove that products were transported under the conditions required by regulations. Additionally, during audits or regulatory inspections, these records will serve as proof that the cold chain was respected throughout the process.

3. Prevent Product Loss and Associated Costs

Temperature-sensitive products often represent significant investments for businesses. Any errors in temperature management during transport can result in significant financial losses due to product degradation. For example, in the pharmaceutical industry, losing batches of medications or vaccines due to a cold chain break can lead to high replacement costs and damage the company’s reputation.

By proactively monitoring temperature during transport with a temperature data logger, you can prevent costly product losses. These devices can instantly detect any temperature deviations, allowing responsible parties to take corrective actions before irreversible damage occurs.

4. Improve Traceability and Transparency

One of the main advantages of modern temperature data loggers is their ability to provide detailed reports and temperature histories that can be accessed at any time. These devices continuously record temperature data and timestamp it to ensure full traceability. In case of any issues or non-compliance, these detailed reports help pinpoint exactly where and when a cold chain break occurred.

This traceability is crucial not only for internal audits but also for external inspections. Temperature data loggers provide complete transparency throughout the product transport process. This strengthens the trust of both customers and regulators in the safety and quality assurance practices of your business.

5. Optimize Logistics Costs

Temperature monitoring during transport can also help optimize logistics costs. By quickly detecting anomalies, temperature data loggers reduce the risks associated with cold chain disruptions, minimizing costs related to product returns or replacements. Moreover, analyzing the temperature data collected during transport can help identify inefficiencies in logistics processes, such as idle periods in refrigerated areas or frequent temperature deviations, which can lead to corrective measures that improve the overall distribution chain.

6. Ensure Customer Satisfaction

Consumers and healthcare professionals expect products to arrive in perfect condition and under optimal conditions. Any cold chain breakage can compromise customer satisfaction, as they may receive products that are of poor quality or ineffective. Rigorous temperature monitoring during transport ensures that products arrive in the best possible condition, maintaining customer satisfaction and fostering brand loyalty.

7. Use a USB Temperature Data Logger to Simplify Management

One of the simplest and most effective tools to monitor the temperature of temperature-controlled shipments is the USB temperature data logger. This device continuously records the temperature throughout transport and allows for easy data retrieval by simply plugging it into a computer. A USB temperature data logger generates detailed, timestamped reports, providing complete traceability and simplifying data management.

Conclusion

Monitoring the temperature during temperature-controlled transport is essential to ensure the safety, quality, and compliance of temperature-sensitive products. With tools like USB temperature data loggers, you can ensure that your products are kept within the required temperature range, reduce the risk of losses and errors, and optimize logistics costs. These tools also provide complete traceability and real-time monitoring, improving transparency and building trust with customers.

By investing in reliable temperature monitoring solutions, you not only safeguard the quality of your products but also ensure compliance with regulations, prevent financial losses, and optimize your logistics processes.

/ By Stéphane MURE / Regulations & Standards/ 0 Comments

GDP requirements (Updated Jan 2023)

Is it acceptable that storage conditions are not monitored for medicinal products which do not have any predefined storage conditions on the outer packaging?

No. According to the PDF icon Guideline on declaration of storage conditions (CPMP/QWP/609/96 Rev. 2) , marketing authorisation holders have to provide stability data for storage conditions at 25°C / 60% relative humidity (RH), or 30°C / 65% RH (long term) and 40°C / 75% RH (accelerated), in order to justify not including a statement in the medicinal product labelling.

This stability data is generated according to the temperature and humidity conditions of climate zone I (temperate) and II (Mediterranean/subtropical) in Europe. For more information, see the World Health Organization Expert Committee on Specifications for Pharmaceutical Preparations forty-third report, Annex 2: Stability testing of active pharmaceutical ingredients and finished pharmaceutical products.

No labelling statement means that controls should be in place to maintain conditions relevant to climate zones I and II. Consequently, the temperature should be monitored during storage and transport. Appropriate limits should be set for temperature monitoring to ensure that product stability is not adversely affected.

Lien vers le texte original ICI.

USB Temperature Data Loggers

Sensolabo® USB Temperature Data Loggers Offer a Universal Solution …

Indicateur de renversement pour détection d'inclinaison de colis fragiles - Thermolabo.
/ By Stéphane MURE / Protection Solutions/ / 0 Comments

What is a Tilt Indicator?

Tilt Indicator: Secure Your Shipments and Goods

In the logistics sector, visibility into the condition of goods is a major challenge. A tilt indicator (or turnover detector) has become an essential solution to guarantee the integrity of your packages during transport and storage.

What is a tilt indicator?

A tilt indicator is a single-use monitoring device designed for logistics surveillance. Attached directly to the packaging or the product, it allows for an instant check of whether an object has undergone excessive tilting or a complete overturn—situations that could lead to breakage or damage.

Why use a turnover detector?

The visual appearance of this device is intentionally designed to catch the attention of supply chain operators. It serves a dual purpose:

  • Deterrent effect: It encourages handlers to take extra care during manipulation.
  • Immediate proof: It allows the recipient to establish an extremely quick assessment of the condition of the delivered products.

In case of an anomaly, the customer can then state the necessary reservations to protect their interests, as well as those of the sender.

An economical solution for your sensitive products

The success of the tilt indicator is based on two pillars: its generally modest cost and its great ease of use. These advantages contribute to its widespread use when transporting fragile or high-value products.

Leave no room for doubt during your shipments. Discover the latest generation of the Thermolabo tilt indicator here for optimal protection of your goods.