1. Prevent "Yan". Beware of foods with too bright colors. For example, strawberries on the market are as big, red and bright as wax fruit, pickles are bright yellow and attractive, and bottled bracken is bright green and does not fade. Be careful. Is there a problem with adding pigment?

2. Prevent "white". All foods are abnormal and unnatural white, and nine times out of ten there will be hazards of chemicals such as bleaching agent, whitening agent and flour treatment agent.

3. prevent "long". Try to eat less food with long shelf life. Packaged cooked meat and poultry products stored at 3℃ are pasteurized, and the shelf life is usually 7-30 days.

4. prevent "reverse". It is food that prevents unnatural growth. Eating too much may have an effect on your health.

5. prevent "small". Beware of the products of small workshop-style processing enterprises, which have the lowest average pass rate in food sampling, and shocking food safety incidents often appear in these enterprises.

6. Prevent "low". "Low" refers to the food whose price is obviously lower than the general price level, and most of the food whose price is too low is "tricky".

7. Prevent "scattering". Bulk is bulk food, and some bulk bean products, cooked food and pickles sold in the market may come from underground processing plants.