High heavy metal content has always been a hot issue in the food safety of the dehydrated vegetable industry. It is also necessary to avoid excessive heavy metal minefields. Cui Yuan believes that in the processing of dehydrated vegetables, the selection of raw materials is a crucial aspect. To analyze the green and environmentally friendly sources, it is necessary to know how to avoid excessive heavy metal raw materials in the processing of dehydrated vegetables.

Origin selection

The selection of the production area should pay attention to the following points: (1) The production area of vegetables should be far away from factories, hospitals, mining areas, living areas, major traffic arteries and garbage dumps. (2) The detected pollutants should be selected from among environmental elements such as air, water and soil, and their values should not exceed the relevant national regulations.

Reasonable drainage and irrigation

By controlling water and regulating the oxidation and reduction of soil, the existing forms of heavy metals in vegetables can be affected. Heavy metal pollution such as CD and Pb on aquatic vegetables can reduce the harm of Pb and Cd.

According to the differences in heavy metal accumulation in different vegetable varieties, a reasonable production layout of vegetables was carried out

For instance, in severely polluted areas, reducing heavy metal elements, such as in vegetables, the cultivation of vegetables and their roots, and cultivating strong antibacterial varieties of heavy metals. In order to screen the resistance of various vegetable varieties to heavy metal pollution, recommended varieties are provided to offer technical guidance to farmers.

The state should formulate and improve hygiene standards for vegetable food and strengthen supervision and inspection of food safety

With the improvement of people's living standards, the daily intake of vegetables is also increasing. However, at present, there is no systematic evaluation standard for heavy metal pollution in vegetables in our country. From the perspective of food hygiene, standards should be adopted throughout the entire food chain to allow people to consume food. Meanwhile, we should also consider his influence