In hot weather, the best way to relieve the heat is to turn on the air conditioner, drink iced drinks, and eat a watermelon…

However, recently, Meizhou has A woman developed an acute infection after eating an overnight iced watermelon and was rushed to the hospital for emergency treatment, but was diagnosed with sepsis.

When the woman was admitted to the hospital, she had experienced abdominal pain, diarrhea, and repeated fever. After being asked by the doctor, she said that these symptoms were all after eating a piece of cold watermelon. When it appeared, she also said that the watermelon was bought the day before and had been wrapped in plastic wrap before putting it in the refrigerator. Through examination, the doctor found that the calcitonin in the woman’s body is 80 times that of normal people, which means that the bacterial infection is serious. If it is not treated in time, it will easily endanger life.

In daily life, many people say that overnight food cannot be eaten, that eating watermelon overnight will cause poisoning, and eating overnight meals and tea will cause excessive nitrite and cancer. Isn’t it true?

1. Can I eat watermelon overnight? Take a look at the CCTV test

Can I eat watermelon overnight? In order to verify the food safety of overnight watermelon, a reporter from CCTV Finance “First Time” conducted a test. The reporter sent the overnight watermelon sample to the bacteria laboratory of the Fourth People’s Hospital of Huai’an City, Jiangsu Province for testing.The result found that the sample contained a large number of negative bacilli and positive cocci, and the colony group was seriously exceeding the standard. It does not exclude intestinal pathogenic bacteria.For people with weak gastrointestinal tract, eating watermelon overnight may cause diarrhea, gastroenteritis, etc.

Why are there so many bacteria in overnight watermelon?

Most of the watermelon poisoning is caused by eating watermelon contaminated with a large number of bacteria. Watermelon itself contains water and sugar, which is very suitable for bacteria to breed. If the watermelon is placed at room temperature, it is easy to cause the bacteria to multiply.

In addition, the low temperature of the refrigerator can make some bacteria dormant, but some bacteria They prefer to survive in a low temperature environment. If these bacteria are hidden in the refrigerator, watermelon is a good “Petri dish”. For example, Listeria can survive for a year at minus 20 degrees Celsius. It can infect meat, vegetables, fruits, etc. Causes toxic reactions in humans.

So whether the watermelon can be eaten overnight depends on whether it is properly stored.

Li Rongkuan, director of the Department of Infectious Diseases of the Second Affiliated Hospital of Dalian Medical University, said that watermelons should be preserved with Clean knife and chopping board specially designed for cutting fruit, wrap it in plastic wrap as soon as possible after cuttingwrapped< /strong>, and put it on a layer dedicated to fruit in the refrigerator, separate from other foods to avoid secondary pollution . In addition, watermelon should not be refrigerated for more than 12 hours in the refrigerator.

Second, can I eat overnight meals and overnight tea?

Watermelon overnight is at risk of being infected by bacteria, so will overnight meals and overnight tea also cause excessive nitrite to cause cancer?

CCTV’s “CCTV-17” channel once tested the nitrite contained in the overnight meals, and the program team cooked three dishes: by comparing the nitrous acid just out of the pot Salt content of braised beef (6.2mg/kg), stir-fried lotus root (6.2mg/kg), stir-fried spinach (6.2mg/kg), and nitrite content after 12 hours of refrigeration, all dishes were found after overnight, Nitrites all increased – braised beef (increase by 3.1mg/kg), fried lotus root (increase by 1.89mg/kg) and fried spinach (increase by 0.4mg/kg).

CCTV’s financial program team once made a statement about the nitrite contained in overnight tea For testing, the experiment selected 3 cups of Longjing, Pu’er and Chrysanthemum tea. After 12 hours or 24 hours, nitrous acid was less than 0.2mg/kg.

Nitrite is harmful, but it is based onchronic excess under the premise. Excessive nitrite enters the human body, and under the action of gastric acid, generatesnitrosamine, which is the exact carcinogen. Therefore, under normal circumstances, it is not a big problem to occasionally eat leftovers.

Third, be careful if these foods are left overnight

These three foods may produce a lot of bacteria overnight, so if you can’t finish eating them, you should throw them away immediately Lose.

1. Fungus soaked overnight

Many people soaked fungusThey all like to soak overnight. During the long-term soaking process, black fungus may produce a kind of bacteria called “Pseudomonas Coconut” bacteria, it can produce a pathogenic toxin called “rice ferment acid”, which is not only resistant to high temperature, but also highly toxic to the human body. For this toxin, there is currently no specific medicine in medicine. It can pass through the blood and reach human organs, and the mortality rate is as high as 50%.

It should be noted that not all fungus will produce a large number of germs after overnight foaming, causing infection. It just means that there is a certain probability that it can cause bacterial infection and produce toxins. Everyone Avoid as much as possible.

2. Overnight wet rice noodles< /p>

In fact, in addition to the fungus, wet rice noodles are also susceptible to infection with Pseudomonas cocoa, resulting in rice yeast acid. In the southern market, many rice noodles, rice noodles, and rice noodles are easily contaminated with the bacteria during production, processing, and storage, and many shops like to spread the wet noodles in a hot and humid environment, which is easier for bacteria to multiply. Production of rice yeast acid.

3. Overnight salad dishes

The cold dishes are mostly raw food, and the ingredients are not subjected to high temperature Cooking itself may contain a lot of bacteria. In addition, in the process of making cold dishes, the environment and kitchen utensils may also carry bacteria, causing food to be contaminated during the production process. The most fundamental reason for cold dishes causing food poisoning is that they are not heated, and there is no high-temperature sterilization link, so whether it is overnight or not, the food risk is very high.

Do you like to eat iced watermelon in summer? Are they properly stored when refrigerated? Although food poisoning is a matter of probability, no one knows which will happen first tomorrow or an accident. #Number Weekly# #Health Truth Plan#

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