Let's follow the Chongqing refrigerated truck editor to learn more:

1. Fruits and vegetables suitable for temperatures around 0 ℃: The vast majority of roots, stems, and leafy vegetables are cool loving fruits and vegetables (originally from temperate and cold regions), and their suitable storage temperature is 0-2 ℃, which cannot be lower than 0 ℃. Cabbage, spinach, cauliflower, celery, carrots, peaches, grapes, apples.

When these fruits and vegetables are first purchased, do not immediately put them in the cold storage, as low temperatures can inhibit the enzyme activity of the fruits and vegetables, making it difficult for residual toxins to decompose. So, these fruits and vegetables should be stored at room temperature for the whole day before being put into the refrigerator.

2. Fruits and vegetables suitable for a temperature of around 10 ℃: tomatoes, cucumbers, bell peppers, lychees, bitter gourd, cowpeas, pumpkins and other vegetables, suitable for storage at a temperature of generally around 10 ℃; Due to their high moisture content, these fruits and vegetables may turn black, soft, and lose their flavor after prolonged refrigeration.

3. Fruits and vegetables suitable for temperatures above 10 ℃: Tropical fruits should be stored in a dark and cool place. If you want to store it in a cold storage, it should be placed in a cold storage with a higher temperature, and the storage time should not exceed two days. The suitable storage temperature for fruits and vegetables such as bananas, lemons, pumpkins, etc. is 13-15 ℃. Low temperature storage can easily cause them to turn black and rot.

4. Foods that are not suitable for refrigeration: Ham should not be refrigerated because it will cause the fat in it to precipitate, leading to clumping or loosening of the ham meat. Chocolate is prone to white frost on the surface after refrigeration, which can cause it to lose its original flavor.

Bread and other pasta should not be stored in cold storage, otherwise it will cause the straight chain part of its branched starch to slowly combine, gradually becoming hard and exhibiting a "aging" phenomenon.

If the storage temperature is higher than the appropriate temperature, it will accelerate the post ripening aging process and shorten the storage period; If the storage temperature of the refrigerated truck is lower than the appropriate temperature, it will lead to the occurrence of cold damage and freezing damage. The low-temperature critical temperature for storage varies depending on the variety.