1. The optimal temperature for storing chocolate is 5℃-18℃.

It can be sealed in a plastic bag and then stored in the refrigerator.

When taking it out, do not open it immediately, let it slowly warm to room temperature before eating.

2. The optimal temperature for fish storage is above -30°C. Fish in the refrigerator should not be stored for too long. The refrigeration temperature of household refrigerators is generally -15°C, and the best refrigerator can only reach -20°C.

When aquatic products, especially fish, are stored at a temperature below -30°C, the fish tissue will undergo dehydration or other changes. For example, if crucian carp is refrigerated for a long time, the fish will easily become rancid and the meat quality will change, making it inedible.

3. Cucumber.

Cucumbers and green peppers will turn black, soft, and lose flavor if stored in the refrigerator for a long time.

Cucumbers also grow sticky hair.

Because the storage temperature in the refrigerator is generally around 4°C to 6°C, while the suitable storage temperature for cucumbers is 10°C to 12°C, and the temperature for green peppers is 7°C to 8°C, they are not suitable for long-term storage.

4. Banana storage The best temperature for bananas is above 12°C. If the bananas are stored below 12°C, the bananas will turn black and rot.

5. The best temperature for storing fresh lychees is below 0°C. If the lychees are left in an environment of 0°C for a day, the skin will turn black and the pulp will change flavor.