1, when buying food, pay attention to whether the food packaging has the manufacturer, the production date, whether the shelf life has passed, whether the food raw materials and nutrients are marked, and whether there is a QS logo. You can't buy three-no products.

2. Open the food package and check whether the food has proper sensory characteristics. Do not eat foods that are spoiled, rancid, moldy, insect-borne, filthy, mixed with foreign bodies or have other sensory abnormalities. If the food in protein is sticky, the fatty food has a whistling smell, the carbohydrate has a fermenting smell, or the beverage has abnormal sediment, you can't eat it.

3. Don't buy lunch boxes or food from unlicensed vendors around the campus to reduce the hidden dangers of food poisoning.

4. Pay attention to personal hygiene, wash your hands before and after meals, wash and disinfect your own tableware, don't put food in unclean containers, and don't litter in the canteen to prevent mosquitoes and flies from breeding.

5. Eat less fried and fried food.

Second, the way to buy cold drinks.

1. Look at the packaging: the product packaging is tight and complete, the trademark content is complete, and the product name, factory name, address, net weight, main components, production date and shelf life are clearly visible.

2, look at the color: the color of the product should be consistent with the name, if its color is too bright, it may be caused by adding too much pigment, do not buy and eat.

3. Smell: The fragrance of the product should be consistent with the product name, and it should be soft, pungent and tasteless. If there is an odor, it means it has deteriorated.

4. Taste: The taste of the product should be sweet and sour, and there should be no bitterness, astringency or alcoholic taste (except alcoholic beverages).

5. Observe the juice: the product should be clear and transparent, without impurities, turbidity and precipitation. If the beverage is found to be layered, flocculent or a large number of precipitates can not be stirred, it is a significant sign of deterioration and cannot be drunk. In addition, if you eat a lot of cold drinks after exercise or on an empty stomach, it will strongly stimulate the gastrointestinal tract and the heart, causing sudden convulsions, leading to various enzyme and chemical reactions disorders and menstrual disorders in women.

Third, how to identify dairy products

Milk and its products are ideal foods for the elderly, women, children and patients, but they are easy to deteriorate. The identification of hygienic quality of milk and dairy products can be carried out in the following ways.

Fresh milk: a white or yellowish uniform suspension with normal sensory characteristics, without clots and impurities, with a slightly sweet and unique fresh milk aroma. If it is found that the color of milk turns gray, yellow or red, and it has a sour taste, when clots or precipitates appear, it means that the milk has gone bad and cannot be drunk.

Milk powder: the normal sensory characteristics should be light yellow powder with small and uniform particles, without quick knot and odor. When buying milk powder, check whether the packaging is tight, because if it is not tight, milk powder will deliquesce easily. In addition, we should pay attention to the shelf life, and the hygienic quality of expired milk powder is not guaranteed.

Yogurt: Ordinary yogurt, with the same color as fresh milk, dense, solid and uniform clots, pure and fragrant lactic acid smell and no bubbles. When the color and taste of milk change, the clot melts and a large amount of whey precipitates, it means that milk has deteriorated and should be discarded and not drunk.

Sweet condensed milk and evaporated milk: normal sweet condensed milk and evaporated milk are even light yellow and sweet. When poured out, the emulsion flows downward in a linear or ribbon shape. If clots, mildew spots, floating fat and peculiar smell are found, it means that the sanitary quality is poor and it cannot be eaten.

10, the processed food was contaminated.

Four, ten suggestions to prevent food-borne diseases

1, do not buy or eat spoiled, unclean and other foods containing harmful substances;

2. Don't eat food of unknown origin; Don't buy food with incomplete identification such as factory name and address, shelf life, etc.

3. Don't patronize unlicensed mobile stalls and restaurants with poor sanitary conditions; Don't buy or eat inferior food and drinks sold by street vendors at will. These inferior foods and drinks are often substandard, and eating them will be harmful to health.

4. Don't eat cooked food and leftovers left at room temperature for more than 2 hours;

5, don't eat wild vegetables and wild fruits casually. There are many kinds of wild vegetables and wild fruits, some of which contain toxins harmful to human body. It is difficult for inexperienced people to distinguish clearly. Only by not eating wild vegetables and fruits casually can we avoid poisoning and ensure safety.

6. Wash raw fruits and vegetables. Fruits and vegetables will not only be infected with germs, viruses and parasite eggs, but also remain pesticides and insecticides. If it is not cleaned, it may not only infect diseases, but also lead to pesticide poisoning.

7. Do not drink unclean water or unboiled tap water; Whether the water is clean or not is difficult for the naked eye to tell. Clear and transparent water may also contain germs and viruses, and drinking boiled water is the safest.

8, direct consumption of melons and fruits should be thoroughly washed with water, as far as possible peeling; Don't eat rotten food, it tastes sour and bitter. It gives off a special smell, which is caused by the reproduction of bacteria. Eating these foods will cause food poisoning.

9. Wash your hands before or after meals; Get into the habit of washing hands before eating. People's hands do this and that every day, touching all kinds of things. Will be infected with germs, viruses, parasitic eggs. Wash your hands carefully with soap before eating to reduce the possibility of "illness from the mouth".

10, in the process of eating, if you find abnormal sensory properties, you should stop eating immediately.

Five, eight common food hygiene misunderstandings are as follows:

1, so lively and happy to eat: on holidays, most people like to "grab meals" in restaurants in twos and threes, or have dinner with relatives and friends at home, which is lively and easy to exchange feelings. This is unhealthy and does not conform to food hygiene, especially in this extraordinary period, it is best to implement a separate meal system. The practice of sharing meals is the responsibility and respect for others and their own lives and health.

2. Wrap food in white paper: Some people like to wrap food in white paper because it looks clean. But in fact, in the production process of white paper, many bleaching agents and corrosive chemical raw materials will be added. Although the pulp is washed and filtered, it still contains many chemical components, which will pollute food. As for wrapping food with newspapers, it is even more undesirable, because when printing newspapers, a lot of ink or other toxic substances will be used, which is extremely harmful to human body.

3. Disinfect the tableware with wine: Some people often wipe the tableware with white wine, thinking that this can achieve the purpose of disinfection. As we all know, the alcohol used for disinfection in medicine is 75%, while the alcohol content of general liquor is mostly below 56. After all, liquor is different from medical alcohol. Therefore, wiping bowls and chopsticks with white wine can not achieve the purpose of disinfection at all.

4, the rag is not cleaned in time: experiments show that after using a brand-new rag at home for a week, the number of bacteria will surprise you; If you are in a restaurant or a food stall, the situation will be even worse. So clean the table thoroughly before wiping it with a rag. The dishcloth should be boiled and disinfected with boiling water every three or four days to avoid harm to health caused by improper use of the dishcloth.

5. Wipe the tableware with toilet paper: Experiments have proved that many toilet papers (especially those produced by informal manufacturers) have poor disinfection effect. Because of incomplete disinfection, these toilet papers contain a lot of bacteria; No matter how well disinfected, toilet paper will be contaminated during the placing process. Therefore, wiping bowls, chopsticks or fruits with ordinary toilet paper can not only wipe the food clean, but also bring more opportunities for food pollution in the process of wiping.

6. Dry tableware or fruit with a towel: People often think that tap water is raw and unsanitary, so after washing tableware or fruit with tap water, they often dry it with a towel. This seems hygienic and careful, but in fact it is just the opposite. It should be noted that many bacteria often survive on dry towels. At present, most of the tap water in cities in China has undergone strict disinfection treatment, so the food thoroughly washed with detergent and tap water is basically clean and safe to eat, and does not need to be wiped with a dry towel.

7. Cook spoiled food before eating: Some housewives are frugal, and sometimes cook slightly spoiled food at high temperature before eating, thinking that this can completely eliminate bacteria. Medical experiments have proved that the toxins secreted by bacteria before entering the human body are very resistant to high temperature and are not easy to be destroyed and decomposed. Therefore, it is not advisable to heat the leftovers.

8. Gouge out the rotten part of the fruit before eating: When some people eat fruit, they are used to gouging out the rotten part of the fruit before eating, thinking it is more hygienic. However, microbiology experts believe that even if the rotten part of the fruit is cut off, the remaining part has been introduced into bacterial metabolites through fruit juice, and even microorganisms have begun to multiply, among which mold can cause cell mutation and cause cancer. Therefore, as long as the fruit is rotten, it should not be eaten, and it is better to throw it away.

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