Dishes that can't be eaten should be put aside in advance, and then stored in the refrigerator. Don't turn them over for a long time. The more vegetables are turned over, the greater the chance of being infected by microorganisms, which can well control the generation of nitrite and ensure the safety of leftovers. The experiment showed that the nitrite content of spinach and other green leafy vegetables would increase from 3mg/kg to 7mg/kg after 24 hours if spinach was cooked without turning over and put in a refrigerator at 4 degrees. People will be poisoned only after eating 0.2g nitrite, so this is still a very low amount, so don't worry too much.
Extended data
Several inedible overnight dishes:
1, Overnight Egg: If the egg is not fully cooked, the immature yolk will be eaten overnight. In the case of improper preservation, nutritious things can easily breed bacteria and are harmful to the body, such as gastrointestinal discomfort and flatulence.
2, overnight tea: overnight tea because of too long time, most of the vitamins have been lost, as well as protein, sugar and so on. The nutrients in tea soup will become a breeding ground for bacteria and mold, so for health, it is best not to drink overnight tea.
3. Boiling water overnight: The nitrite content in boiling water is higher than that in raw water. In addition, if the boiling time is too long or the boiling time is repeated for more than 24 hours, the nitrite content will increase obviously. After boiling for 24 hours, the nitrite content was 65438 0.3 times higher than that of boiling.
People's Network-How to deal with the harm of eating overnight dishes without wasting them?