During the Spring Festival, if leftovers are not properly handled at home, serious food poisoning will result, and lighter ones will leave hidden dangers to physical health. Too many meals are done, and it is unfavorable for health to eat several foods that are leftovers. If there are foods left to be processed, the following should be noted:
1. Leftovers need to be cooled before being put in the refrigerator. This is because hot food suddenly enters the low-temperature environment. The food center is prone to qualitative change, and the hot air brought in by the food causes condensation of water vapor, which promotes the growth of mold, which leads to mildew in the food in the refrigerator.
2. Leek easily germinate for 2 hours. The harmful bacteria in the air will adhere to some high-protein, high-fat leftovers within 2 hours. Proteins and fats, under the action of bacteria, produce harmful substances such as hydrogen sulfide, amines and phenols. These substances are harmful to the human body. Therefore, leftovers are put into the refrigerator within two hours after cooking, and are stored in shallow containers to facilitate cooling.
3. Leftovers do not exceed 6 hours. It is advisable to keep the leftovers for a time without food. The leftovers will be eaten at noon, and the leftovers will be eaten at noon. It is best to eat it within 5 to 6 hours. If the food is stored for a long time, the bacteria in the food will release chemical toxins and there is no way to heat these toxins.
4. Leave the leaves overnight. Some overnight dishes, especially overnight green leafy vegetables, are not only of low nutritional value, but also produce nitrite that is pathogenic. Therefore, if different kinds of vegetables are left at the same time, you should eat stems and leaves first, such as cabbage, spinach, etc., do not eat overnight vegetables.
5. Leftovers and packaged food must be returned. After the food stored in the refrigerator is taken out, it must be returned to the pan. This is because the temperature of the refrigerator can only inhibit the proliferation of bacteria and cannot completely kill them. If you do not heat before eating, you may feel unwell after eating, such as dysentery or diarrhea. Especially the fish and seafood dishes commonly used in the Spring Festival, the nutrients they contain are also the best breeding ground for E. coli. Therefore, they should be heated thoroughly with wine, onions, ginger, etc., not only to keep fresh but also to kill bacteria.
6. Do not place leftovers in aluminum containers. Aluminum easily produces aluminum oxide film in the air, which is more salty foods or soups stored there, it will produce chemical changes, causing adverse effects on the body, can be porcelain and then wrapped with plastic wrap into the refrigerator
7. Heat longer before eating again. In addition, the Chinese New Year meal, leaving more natural dishes. These meat foods, especially fish and seafood, must be heated for a long time before they are eaten again because harmful bacteria in the air will adhere to some of the high-protein, high-fat leftovers. If the heat is not enough, these bacteria cannot be killed. Once eaten, people are prone to food poisoning.
Leftovers are best eaten in 5-6 hours. In general, most pathogenic bacteria can be killed by heating for a few minutes at a high temperature of 100°C. However, if it is stored for a long time, the bacteria in the food will release chemical toxins. Even if it is heated, there is nothing to do with these toxins.
Seafood: Fish is a high-protein food. Bacteria are easy to breed. On the leftover fish, E. coli can multiply twice every 8 minutes at a temperature of about 20°C. Within five or six hours, the bacteria above it A lot of heat will not make people feel uncomfortable or even cause acute gastroenteritis. Therefore, when you eat fish, you must completely heat it. Fish, shellfish and other seafood foods are best to add some wine, onions, ginger, etc. when heated, so that you can provide fresh, there is a certain bactericidal effect, to avoid stomach discomfort.
Meat: It is best to add some vinegar when heating the meat such as livestock and poultry. Because such foods contain relatively abundant minerals, these minerals will overflow with the moisture when heated. However, when these substances meet acetic acid, they will synthesize calcium acetate, which will not only increase the nutritional value of the food, but also help the body's absorption and utilization of nutrients.
In general, meat foods have relatively slow heat penetration. When the bulk foods are relatively large, if the heating time and heating temperature are insufficient, the bactericidal effect cannot be achieved, which may cause abdominal pain, diarrhea, and even food poisoning.
8. The leftovers are at most every meal, but not overnight. How to eat leftovers? Some people will put the leftovers in the refrigerator and eat them in a microwave oven for several laps. Although the meal is hot, this practice is not scientific. The leftovers are stored in the refrigerator, and the rice will harden under low temperature conditions. In the words of ordinary people, it means "return to life." Even if the cold rice is cooked again or heated in a microwave oven, it will not return to its original taste and digestibility.
More importantly, starchy foods such as rice and noodles are easily parasitized by staphylococcus, and the toxins of such bacteria are not easily decomposed at high temperatures. Experts said that starchy foods should be eaten within 4 hours. Rice should be kept for a long time. Even if it does not deteriorate in appearance, it should not be eaten. The rice is best to be eaten along with cooking, at most, it is a meal, but not overnight.
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