1, good cauliflower is usually white, milky white or yellowish, but cauliflower with a little yellow tastes better than white cauliflower. You can't buy cauliflower with dark color or black spots. This recipe is not fresh.

2. It is best to choose flowers that are seamless, firm and not yellow, and flowers will not come loose. Don't buy hollow stems.

3. Broccoli with full green leaves is fresher. The leaves are yellow or wilting, indicating that they are not fresh. In addition, be careful not to have too many leaves, otherwise it will take up weight.