Something that needs to keep warm and keep fresh, such as courier foods, is related to the following aspects:
1. It is related to the foam box or incubator housing food. Foam box is mainly to see its density, size and insulation properties. The higher the density, the thicker the thickness, the better the insulation performance and the longer the holding time.
2, and the use of ice bags. The quality of the ice bag itself and the number of ice packs used determine the length of the holding time. There are many kinds of ice bags on the market. The average consumer simply can't know which kind is good, which kind is not good, besides doing tests, but how can ordinary consumers do tests? ? ICE Ice King bio-ice bags, in the 24-30 degrees room, 0.013 square, 2 cm thick foam box, maintain 10 degrees below the temperature can last for more than 12 hours. ICE ice water ice pack, ICE fresh ice bag...
3, and the ambient temperature.
4, if the courier thing can be frozen, it is best to be frozen together with the foam box, and then put a good cold ice pack, so that the holding time will be much longer.