The application of temperature and humidity recorder in food storage and transportation

Temperature and humidity recorder is a kind of
temperature and humidity meter in temperature and humidity measuring instruments.

It has the function
of measuring temperature and humidity with built-in temperature and humidity sensors or by connecting an external temperature and humidity sensor.

The recorder is mainly used to monitor and record the temperature and humidity data of food, medicine, chemicals and other products in the storage and transportation process, and is widely used in all aspects of the cold chain of warehousing and logistics, such as refrigerated containers, refrigerated trucks, refrigerated bags, cold storage, laboratories, etc
.

Food storage and transportation Because the time of food storage and transportation process is not a short-term problem, but the relative equilibrium humidity in food preservation is an important indicator to ensure food, and the relative equilibrium humidity directly affects the growth
of colonies.

For example, in the equilibrium relative humidity range of 95% RH to 91% RH, colonies that are prone to breeding are Salmonella, Paulinthia, lactic acid bacteria, molds and yeasts
.

The food preservation cycle is also related to temperature, equilibrium relative humidity, equilibrium relative humidity value of 81% RH cake, its shelf life of 27 °C when 14 days, 21 °C when 24 days, if the equilibrium relative humidity increased to 85% RH, these indicators will be reduced to 27 °C at 8 days, 21 °C when 12 days
.

The equilibrium relative humidity of hygroscopics plays a decisive role
.

Equilibrium relative humidity is defined as the humidity value
obtained by the surrounding air without the exchange of a substance with the water in the air.

This definition is clear that in order to successfully store and maintain these products, environmental climate control and packaging must be carefully specified
.

At the same time, many foods are kept in too dry, and their taste will be somewhat deteriorated
.

In view of this situation, it is required to record the temperature and humidity changes in real time to ensure that the food enters the consumer's mouth
.

When shipping frozen and refrigerated food over long distances or by sea, it is very important to prove that the goods have been in the specified temperature and humidity conditions when receiving it
.

The solution to the dispute is to put a recorder in the cargo hold when shipping, and start it, the temperature and humidity recorder has a precision internal clock, faithfully record the temperature and humidity data of the time interval, and can easily use the computer to view the graphic file and alarm value when taking it out, determine whether it exceeds the allowable value, when and for a long time can be easily obtained, and whether the carrier is responsible will know immediately
.