1. The pork of flower skin bought in the supermarket is generally frozen, so after buying it, it should be thawed first. It's easy to thaw the flower skin, as long as you put it in water, it will melt quickly.

2. Sometimes, the meat of the flower nail is salty, so you have to soak the meat of the flower nail first to remove some salt.

3. There are more or less impurities in the frozen flower shell meat, such as flower shell, sand and small screws, which must be carefully removed.

4. Flower nail meat has a small black mud intestine. If you are patient, you can carefully remove the mud intestine with a toothpick. If it is too troublesome, you can marinate it with salt and then wash it. Of course, it doesn't affect the taste without removing it!

5. After soaking and removing impurities, there are still invisible small sediments, so it is necessary to rinse them, put them in an empty basket and rinse them with water.