Is it okay to cut vegetables first and then wash them?

　　Is it okay to cut vegetables first and then wash them?

　　The wrong way to cut vegetables first and then wash them. Because vegetables are rich in B vitamins and vitamin C, after the vegetables are chopped, a large amount of the vitamins dissolve in the water from the cutting edge and are lost with the water. The more chopped the vegetables are, the more they are rinsed or the longer they are soaked, the more vitamins are lost.

　　The correct method is to clean the entire vegetable leaves directly. This way there is no knife edge, which greatly reduces the surface area of ​​the vegetables in contact with water and prevents the loss of vitamins in the vegetables.