1, first put the onion in a thinner plastic bag, and then put it in the freezer. When the onion is cool but not frozen, take it out. The onion treated in this way will be less dazzling when cut.

2, put a bowl of cold water on the chopping board, or put the knife in the water for a while first, which can also reduce the irritation of the eyes.

3. Plug your nose with a paper towel and then cut the onion, so you won't shed tears.

4, cut onions and put a spoonful of salt on the chopping board, it will not be spicy.

5. Soak onions in warm water, and then take them out and cut them to avoid eye irritation.