Question

why should the vegetable not be washed after cutting?

Answer 1

bcz nutrients present in them gets washed away....if they r washed under running water and moreover if fruit or vegetable is cut...

Answer 2

Here is your answer
Vegetables must be washed before cutting (I mean before cutting and this does not necessarily mean before peeling).

Most vegetables which needs peeling should be washed before peeling while others (mostly which grows underground like potatoes, “Arbi”, carrots etc) should be washed even after peeling because these have lot of soil, dirt in them and that might remain on the surface of the vegetables even after washing.

More important than these, please keep your vegetables soaked in a solution of vinegar, cooking soda and water for at least half an hour before starting to wash them. This will ensure that the content of pesticide, insecticide, inorganic fertilisers are reduced from the surface of the vegetables.

hope this help u