What is Overnight Food? What are the harms of eating overnight food?

Don't eat it again in the morning overnight, eating such food at the first point will cause this gastrointestinal discomfort, so be sure to pay attention, on the second point, eating such food often will cause gastroenteritis and cancer, and eating such food at the third point will cause bacterial infection, which is very bad for the body.

Overnight food is food that is left out overnight, and eating overnight food may cause injuries such as diarrhea, vomiting, stomach pain, etc.

The leftovers that were not eaten that day, and the dishes that will be heated up tomorrow and continue to eat are called overnight food.

Improper storage of food overnight can cause greater harm to the body of nitrite produced.

Overnight food is the food that is made today, and then reheated and eaten on the second day, these overnight foods are likely to breed a lot of bacteria, and then it will be harmful to health, sometimes nausea and vomiting, and in severe cases, food poisoning.

Overnight food is not the same as a flood beast, as long as it is not left for too long and eaten too often, there is no need to talk about color change. On the contrary, some lifestyle habits have a greater impact on physical health. However, it should be noted that these do not include cooked river seafood, fish and coleslaw.

Cooked river seafood and fish are prone to protein degradants, which can damage liver and kidney function and even produce toxins. The hygiene of cold vegetables is not easy to control, and refrigeration is more likely to deteriorate.

From a food science point of view, overnight is not a problem. The essence of the problem is what happens to the preservation of the prepared dish, and we are concerned about the conversion of nitrates into nitrite in the vegetables. This transformation process can be achieved by the original reductase enzymes in the vegetable, but when the vegetable is heated and cooked, these enzymes lose their activity and this path is truncated.

Another pathway is the action of bacteria. Originally, the vegetables were cooked, and the bacteria in them were almost killed. But in the process of eating, some bacteria on the chopsticks will enter the leftovers; During storage, some airborne bacteria may also enter.

Cooked vegetables are more suitable for bacterial growth, and under the right conditions, they can grow in large quantities, and nitrates can be converted to nitrite during the growth process.

Food does not necessarily become toxic immediately overnight, but some foods may undergo quality changes after being stored overnight, leading to the production of harmful substances or the growth of infiltrating bacteria, which may increase the unsafety of the food. While scientific research has not yet definitively proven which overnight foods can cause serious harm to the body, here are some overnight foods that may need attention, as well as possible food safety issues:

Overnight rice: Overnight rice is prone to bacterial growth, as starch can be a medium for bacterial growth. Improper storage or reheating can lead to food poisoning, triggering problems such as diarrhea.

Overnight Fish Age: Fish are susceptible to spoilage because the proteins in them are easily degraded by bacteria. Fish that are left overnight may produce amines, which in some cases may be linked to headaches, high blood pressure, and other problems.

Overnight meat: Meat is just as susceptible to bacterial contamination, where proteins and fats can break down under inappropriate conditions to produce harmful substances. Nitrates, which may be produced in meat, may also be linked to carcinogenesis.

Frying food overnight: Foods fried overnight may become hard, taste poor, and may produce undesirable oxidation products at high temperatures.

Overnight dairy: Unprocessed overnight dairy products can ferment and spoil, increasing the number of harmful bacteria.

Overnight vegetables: Some vegetables may lose their nutritional value after being left overnight, especially those rich in vitamin C.

Overnight seafood: Seafood is prone to spoilage, so overnight seafood can be a food safety risk.

Still, not everyone will immediately develop serious health problems as a result of consuming overnight food. The way food is handled, stored, and reheated can all affect its food safety. To ensure food safety, here are some things you can do:

Food should not be left overnight, try to store leftover food in time after meals.

Food should be stored at room temperature for too long and it is best to put it in the refrigerator as soon as possible.

Use airtight food containers to preserve leftover food and prevent bacterial contamination.

When reheating overnight food, make sure it is sufficiently heated to the right temperature to kill bacteria.

In conclusion, although science has not yet clearly proven which overnight foods can cause serious harm to the body, it is advisable to follow proper food storage and handling principles to ensure food safety and health. If in doubt, you can consult a food expert or doctor for advice.

1 It is said that these two kinds of water will produce a large amount of nitrite after the night of the celery feast, which is harmful to health. In fact, experimental data has shown that when water is boiled for more than 30 minutes, the nitrite level will remain stable and will not change significantly overnight.

As for overnight tea, although its first color will become darker after a long time, the nitrite content after overnight is indeed about 2 times higher than when it was first brewed. But don't worry, the nitrite standard for drinking water in China is 1 mg L, and the tea that has been overnight still does not exceed the standard, which is safe.

However, the tea will not taste good if it is left out for a long time, so try not to leave it overnight.

2. Whether you can eat the leftovers overnight mainly depends on whether the method you save is suitable or not.

Suggestion: Try not to have leftover vegetarian dishes and cold dishes. Vegetables themselves have more nitrates, and nitrite is more likely to be produced than meat; Cold dishes, on the other hand, are more susceptible to bacterial contamination. Refrigerate in time, if you can go into the refrigerator as soon as you get out of the pot, if you eat the last leftovers, then as soon as possible, don't wait until room temperature and then refrigerate;

Be sure to heat it thoroughly before eating, whether it is meat or vegetarian dishes, the best way to sterilize is to heat it thoroughly.

3 Watermelon is a nutritious meal for bacteria, and hundreds of thousands of offspring can be multiplied in a few hours, let alone overnight.

For watermelons that can't be eaten, overnight is actually not terrible, but two things need to be done: wrap it in plastic wrap and put it in the refrigerator in time. The plastic wrap can isolate the watermelon from other foods in the refrigerator and avoid secondary contamination; Refrigeration can reduce the activity of bacteria, allowing them to grow more slowly.

Of course, from the perspective of freshness, the most recommended thing is: buy smaller melons, wash and refrigerate, and eat them freshly.

4 There is no risk of overnight eggs, the key is that they are not cooked thoroughly, eggs are a kind of food that is easily contaminated by bacteria.

In fact, if the eggs are boiled thoroughly and refrigerated in time, there is no need to worry about overnight, and they can be eaten even for 3 or 4 days. But usually, in order to pursue the taste, many people like to eat soft-boiled eggs that are not cooked thoroughly. Such eggs are not sterilized thoroughly enough, and there is a risk of bacterial contamination.

If you are unlucky, it can lead to foodborne illness.

Everyone's worries about overnight food are actually two words - bacteria.

Food is rich in nutrients, overnight usually means a longer time (8 12 hours), if there is bacterial contamination, as long as the temperature and humidity are right, they will grow and multiply rapidly, causing food to spoil and produce toxic and harmful substances.

Therefore, the 2 key points to ensure the health of overnight are: reduce bacterial contamination and control the temperature.

There is an ancient poem "Who knows that Chinese food on the plate, every grain is hard", wasting food is a shameful behavior. However, some meals cannot be eaten overnight, and even if they are kept in the refrigerator, these foods can still produce harmful ingredients that can be harmful to human health. Let's take a look at some of the foods that should never be eaten overnight.

Seafood products refer to marine animals and plants, such as kelp, fish, shellfish and algae. Overnight seafood is easy to breed bacteria and will produce some kind of toxin, regular consumption of overnight seafood is easy for people's kidney organs, therefore, overnight seafood products are best to eat less and try not to eat.

Overnight tea refers to overnight tea, the vitamins in the overnight tea are generally lost, and acidic substances will be produced, which will harm human health, such as making people suffer from tongue pain, mouth ulcers, etc., therefore, overnight tea is best not to drink.

Tremella has high nutritional value, such as soothing the nerves and nourishing sleep, moistening the lungs and stomach, etc., but overnight Tremella will produce some harmful substances, so it is best to eat cooked Tremella on the same day, not overnight.

Overnight boiled water refers to overnight boiled water, overnight boiled water will produce nitrosamine substances, which are carcinogenic, so usually try to drink less overnight boiled water.

Overnight eggs refer to cooked eggs that have been put overnight, if you can, it is better to eat fresh cooked eggs, in case the overnight eggs are not cooked for the first time, it will be easy to breed bacteria, so that people suffer from gastrointestinal symptoms, but if you keep it properly, it is still a good look at the teeth.

Many people like to stew a large pot of soup and then store it in the refrigerator and take it out when they want to drink it, but overnight soup is prone to produce harmful substances and the nutritional value will also be lost, so it is best not to drink overnight soup. If you want to save trouble, don't put the seasoning in the soup, and then wait until you want to drink it.

Overnight dishes refer to dishes that have been left overnight, and cooked vegetables will produce nitrate substances after being left for a period of time, which has carcinogenic effects, so it is best not to eat overnight dishes, so as not to increase the basis for cancer. Many people think that if they put food in the refrigerator, it will not spoil, but in fact, even if they are placed in the refrigerator, nitrate substances will still be produced, and eating it regularly will still be harmful to health.

Lo-mei refers to foods that have been boiled in brine, such as braised vegetables, braised chicken wings, braised pork, etc., and bulk lo-mei is best eaten on the same day, because lo-mei is also easy to breed bacteria, and it is unhealthy to eat lo-mei overnight. If you want to eat it for fear of waste, you want to heat it up before eating.