How to choose onions

1, look at the shape of the onion. There are two kinds of onion shapes in the market, one is oval with pointed ends, and the other is round with flat ends. A round and flat onion with a big belly is a good onion, because a round and big onion has higher water content and pulp content than an oval onion. The oval onion with two pointed ends has low water content and little pulp, so the dishes made from it are not very crisp and delicious.

2. Look at the top of the onion. When buying onions, pay attention to the position of the onion tip. If the tip of the onion is about to sprout, you can't choose this onion. The taste and nutrition of germinated onions are almost lost, so it is not recommended to buy germinated onions.

3. Look at the dryness of the skin. If the onion is dry enough, it can inhibit its germination, so be sure to choose the onion with dry skin. Never buy onions if their skins are wet or rotten. The taste of this onion paste has changed, so it can't be stored for long after being bought back.

4. The feeling of pinching onions. You can pinch onions by hand when you buy them. If they are difficult to handle, it means that their quality is better. If it is an onion with a soft feel, it means that its internal flesh begins to deteriorate and rot, so you must choose an onion with a hard feel when buying onions.

5. Learn to distinguish the varieties of onions. According to the skin color of onion, it can be divided into white onion, yellow onion and purple onion, and purple onion is the most common one. Onions are rich in anthocyanins. Because purple onion is the deepest color and the highest anthocyanin content, you should choose purple onion carefully when buying.