Principles of food selection: what are the general principles of food selection and purchase?

The so-called seasonal food is the most suitable food for planting and ripening in the current season. Food that conforms to the laws of nature is not only fresh, tastes good, has high nutritional value, but also has a high ability to prevent pests in the season. Therefore, large yields can be obtained without large amounts of fertilization and pesticide spraying, and the price is cheap. What are the general principles for choosing food?

1, do not deliberately choose the appearance of fat, no insect bites of fruits and vegetables.

2, the choice of fruits and vegetables should be diversified, and should be scattered to different vendors to buy better.

In principle, fruits and vegetables with smooth appearance are less likely to be contaminated with pesticides, and those with fine hair or unevenness on the surface are more likely to have pesticide residues, but they still need to be applied according to their application period or whether there are protective measures (such as protective covers).

4, winter vegetables yield more, the price is cheap, should buy more.

5. Choose products promoted by government units, credible and with excellent marks (such as organic fruits and vegetables).

6. Try to buy fruits and vegetables in season, which are not only fresh, cheap and safe.

7, long-term storage or import of fruit, generally must be treated with drugs to extend its storage time, consumers should have the correct understanding when purchasing.

8, fruits and vegetables have drug spots or abnormal chemical smell, avoid buying.

9, summer and autumn vegetable pesticide residues higher than other seasons, or natural disasters, festival days, when the price of fruits and vegetables rise, there may also be early harvest fruits and vegetables on the market, pesticide residues are relatively high, should avoid buying. Consumers can choose reputable frozen vegetables or other processed vegetables instead.