Shipping perishable goods: Understanding refrigerated container temperature settings
Factors affecting temperature settings
When shipping temperature-sensitive perishables in refrigerated containers, it is crucial to understand the optimal temperature and humidity settings to ensure product quality and safety.
Temperature range
The temperature range for refrigerated containers varies depending on the type of container used. Dry containers have a temperature range of -25°C to 25°C, while high-cube containers have a range of -20°C to 25°C.
Relative humidity
Relative humidity (RH) is another important factor to consider. High RH can lead to condensation on the cargo, while low RH can cause dehydration. The optimal RH for refrigerated containers is typically between 85% and 95%.
Recommended temperature settings
The recommended temperature settings for different types of perishable goods are as follows:
- Fruits and vegetables: 0°C to 5°C
- Meat and poultry: -1°C to 4°C
- Fish and seafood: -18°C to -23°C
- Dairy products: 2°C to 8°C
Monitoring and maintenance
It is essential to continuously monitor the temperature and RH inside the container to ensure the desired conditions are maintained. The temperature should be checked at regular intervals, and any deviations from the target range should be promptly corrected.
Regular maintenance of the refrigeration unit is also crucial to ensure it operates efficiently and effectively. This includes cleaning the condenser and evaporator coils, checking the coolant levels, and replacing any worn or damaged parts.
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