Onion is a kind of vegetable with high nutritional value, which is rich in protein, vitamins, calcium, iron and other nutrients. Eating onions can have a good health care effect, because it has a little spicy and irritating taste, and these tastes will cause certain irritation to the intestines, so it can promote digestion. Some of these trace elements can play a very good antioxidant role, so they can enhance the metabolic capacity of the human body, prevent cancer and delay aging. Although there are many benefits of onions, tears can't be avoided when cutting onions. There are some ways to avoid burning eyes.

First, the simplest and most direct way to use goggles is to use goggles, which will not give those spicy and irritating gases an opportunity, will not cause irritation to the eyes, and naturally will not shed tears. Therefore, you can make preparations in advance before cutting onions, and then wear goggles when you start cutting, which can protect your eyes from external stimulation and cut onions smoothly.

Second, the method of lighting a candle beside it seems to be metaphysical, but it does have certain effects. The reason why onions irritate eyes is because one of the substances is wrapped in onions before being cut, but all alliinase will be converted into gas when it comes into contact with air. After touching the eyes, because the eyes are stimulated, they will want to drive away this gas, so they will secrete tears. Lighting a candle can well oxidize this substance and prevent it from irritating the eyes.

Third, put the onion in the refrigerator and refrigerate it in the refrigerator before cutting it. This method can effectively reduce the activity of alliinase and will not easily run into the eyes after cutting. Because the temperature is relatively low, it will affect the movement of this molecule. Although it will still have some irritation, it is much better than onions that are not refrigerated in the refrigerator.