Green leafy vegetables stored in the refrigerator will not only rot faster, but also produce toxic nitrite due to the action of enzymes and bacteria.

2. tomatoes

After being frozen at low temperature, tomatoes are blistered, soft and rotten, or cracked, with black spots on the surface, immature and tasteless, and even rotten in severe cases.

3. Cucumber and green pepper

Cucumber and green pepper will turn black, soften and taste bad if they are kept in the refrigerator for a long time. Cucumbers also have sticky hairs. Because the temperature stored in the refrigerator is generally around 4℃ to 6℃, the suitable storage temperature of cucumber is 10℃ to 12℃, and green pepper is 7℃ to 8℃, so it is not suitable for long-term storage.

Matters needing attention

Compared with the normal temperature environment, the food in the refrigerator can indeed be preserved for a longer time and is less prone to deterioration. But it is worth noting that the food in the refrigerator can't be stored all the time, and most foods are not suitable for long-term storage in the refrigerator. Food stored in the refrigerator for a long time will also be unsanitary and unhealthy.

First of all, because the refrigerator is not a sterile environment, although the temperature is low, there are still some bacteria and viruses that can survive in the low temperature environment. Therefore, the lower temperature can not completely isolate the food in the refrigerator, so as to be foolproof. You should eat as soon as possible, too. It's safer to eat early.