Is there any need for good medical science for daily science and ripening?

Due to the epidemic reasons, more and more families have the habit of "stocking", and foods such as raw meat, vegetables, fruits are stacked in the refrigerator to prepare from time to time. Over time, the small refrigerator has endured the "burden" that "this age" should not bear. The mix of fresh ingredients and leftovers and leftovers has become the norm of many families. However, is it really no harm to store raw food and cooked food? In this issue of good medical science, Daily Popularization invites Lei Lin, an associate professor of the School of Food Sciences of Southwest University to tell you whether it is necessary for the separation of raw maturity.

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Expert introduction

Associate Professor of Food Sciences, Layin Southwest University, master tutor, post -doctoral researcher at the Chinese University of Hong Kong, Honorary Researcher at the Chinese University of Hong Kong, the second member of the Second Member of the Chinese Nutritional Society Nutrition Transformation Medicine Branch, Director of Chongqing Nutrition Society, National "Three Districts" science and technology talents, science and technology talents, Chongqing Science and Technology Specialist, Chongqing Health Popular Science Expert Library, the first member of the Library and Registered Nutritionist. It mainly studies local specialty food resources development and industrialization, fruit, vegetables and oils, quality reduction and quality regulation, and functional food development.

Is there necessary for the separation of raws?

uncertain. Whether the raw cooked is separated depends on the cleanliness and storage conditions of fresh food. For example, the sashimi, sweet shrimp, polar shells, special vegetable salads, sterile eggs and fresh -cut fruits in Japanese shops, etc., can be directly consumed by ensuring the cleaning, fresh and low temperature storage conditions. "Birth" in daily life usually refers to all kinds of foods that cannot be eaten directly, such as ordinary raw eggs, raw poultry and livestock, and freshwater fresh fish and shrimp. This kind of food requires cooking and killing pathogenic bacteria and parasites that may be brought. At the same time, cooking can further improve its flavor, taste and nutritional value.

Fresh foods cannot be ignored food -based pathogenic bacteria

From farms to dining tables, fresh food may be contaminated by bacteria, viruses, parasites, toxins and chemicals, threatening human health. Animal foods, such as poultry, fish, milk eggs, are the main foods that cause bacterial food poisoning. Common food -based pathogenic bacteria are shown in the table below. Ideally, when the temperature is 15-55 ° C, the bacteria can double the number of breeding at the fastest of 10 to 20 min. As long as there is a bacteria in the food, 100 million bacteria will be breeded after 9 h, and it is difficult to detect the naked eye. When the temperature of the food culinary center reaches 70 ° C, the bacteria of about 3 min will die.

Meat

poultry

Egg

Fish and shrimp

Breastfeeding

Fruit and vegetable

common

Food -based pathogenic bacteria

E. coli, ordinary deformation bacteria, purulent bacteria and other Salmonella, Golden Polymodacar, etc. Salmonella, Golden Polymodoccus and other paranasis, Salmonella, Hedgacus, E. coli, and cholera Waiting for Salmonella, E. colorectal, typhoid bacteria, dysentery, Golden Polychiococcus, anthracnobacteria, etc.

-18 ℃ below

-25 ~ -30 ° C, relative humidity 80%to 90%storage for half a year of half a year, 1 to 5 ° C for half a year, and relative humidity 87%to 97%storage for 4 to 5 months, 10 ° C, storage for 5 to 14 days; , -15 ～ -18 ℃ Storage for 6 to 9 months, squeezing the breasts and squeezing it within 2 h to 0 ～ 4 ℃ 10 ℃

Separation of raw cooked trilogy

Shopping bags are cooked and separated

When purchasing in the supermarket or vegetable market, at least two shopping bags are prepared to separate raw foods. use

1:99 The 84 disinfection solution is regularly soaked in a reused shopping bag, and then washed and dry after 20 min; it is recommended to replace the shopping bag regularly.

The cooking process is cooked and separated

During cooking, the tools used in the kitchen, cutting boards, pots, pans, dishes, and chopsticks spoon, etc., all need

Separation of raw cooked. After use, use hot water and sterilization detergent to completely wash and dry it. It is recommended to replace the kitchen utensils regularly.

Refrigerator storage cooked separation

Raw cooked food is best sealed with fresh -keeping box, fresh -keeping bag or plastic wrap, stored in different areas of the refrigerator, which can effectively prevent skewers and cross -pollution. Before eating/frozen food, you must fully heat and sterilize. (Invited experts/Lein Internship/Liu Zhuojing Correspondent/Xiang Jiangyun Tu/Vision China)

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