Raw food refers to the raw materials for making food, such as fish, meat, eggs, poultry, vegetables and grain. Cooked food refers to foods that people can eat directly, such as cooked meat, ham sausage, roast chicken, assorted vegetables and so on. Raw food often contains many bacteria and parasite eggs. But there are basically no bacteria and parasite eggs in the processed cooked food. However, if they are not carefully separated during processing and storage, for example:

Cut cooked food with a knife that cuts raw food; If the cooked food is put in a container containing raw food without cleaning and disinfection, the bacteria and parasite eggs on the raw food will be contaminated on the cooked food again and multiply on the cooked food, which is harmful to human health. So raw and cooked food should be placed separately.

1, raw and cooked food should be used as direct contact of food, kitchen knife and chopping board separately. When cutting raw food, the bacteria in the food will remain on it, and there are more bacteria and parasite eggs on lettuce. If it is used to cut cooked food again, bacteria will directly pollute cooked food with kitchen knives and chopping boards as the medium. Even if it is "disinfected" with boiling water before use, bacteria often cannot be completely eliminated. Therefore, in order to ensure food safety, two kitchen knives and two case boards should be prepared at home and used separately. Besides, it is safer to boil the cooked food in boiling water before cutting.

2. Keep the cutting board clean. After using the chopping block, scrub it with a hard brush and clean water, and wash off the dirt together with the sawdust. If there is fishy smell of fish and meat, you can wash it with rice washing water or detergent dissolved in salt, and then wash it with warm water. Don't scald with boiling water, because the protein in the meat remains on the chopping board, which will solidify when heated, and it is not easy to clean. Stand up to dry after washing. After the cutting board is used for a period of time, you can scrape the sawdust off the cutting board with a kitchen knife or use a carpenter's planer, which can completely remove the dirt on the cutting board, keep the cutting board flat and convenient to use.

3. Raw food and cooked food should be separated because cooked meat and cold dishes are directly polluted by livestock and poultry and aquatic products, or food is frozen regardless of raw and cooked food, which is an important reason for food poisoning in restaurants, collective canteens and families. Because there are many pathogenic bacteria or parasitic eggs on raw food. According to the data report,

Among pigs, cattle and mutton, 30% are high-yielding; In fruits and vegetables, 79% have intestinal bacteria such as Escherichia coli, and 8 1% have ascaris eggs. In the process of processing these foods, bacteria or parasite eggs will inevitably pollute the utensils. If these utensils are used to process and hold cooked food,

Then, bacteria and eggs will pollute cooked food, and people may suffer from food poisoning or parasitic diseases if they eat it. Two sets of raw and cooked utensils, including kitchen knife, chopping board, pot basket and utensils, must be equipped and used separately according to raw and cooked.

Some families have not prepared two sets of food utensils, but after processing and filling raw food, they should clean the utensils or scald them with boiling water for disinfection before filling cooked food.