Yes, the purpose is to remove impurities (floating foam) from meat and remove fishy smell and bloody smell, otherwise the taste will be very poor.

The specific steps are as follows-

Ingredients: 700g of white radish, 500g of ribs, 2 shallots, a little medlar, 1 small piece of ginger, appropriate amount of vegetable oil and salt.

1, let the stall owner chop the ribs bought in the supermarket, soak them in clear water for more than 2 hours, and change the water several times;

2. Wash the white radish, cut the hob block and slice the ginger;

3. Put the ribs in warm water, cook for a while and then take them out;

4. When the wok is warm, add vegetable oil, stir-fry ginger slices, and add ribs to stir-fry slightly;

5. Add white radish and stir well;

6. Put it in warm water without ingredients, put the shallots in the pot and add a little medlar;

7. Bring the fire to a boil and simmer for 20-30 minutes;

8. After cooking for 20 minutes, taste the softness of the ribs. If you like to eat boneless, the time will be a little longer. Season with a little salt before cooking.