2. Put warm water of 70-80 degrees into the thermos bottle;

3. Put the sea cucumber in a thermos bottle and it will foam the next day.

Foaming sea cucumber with thermos bottle is fast, but the taste is hard.

There is also a foaming method that can be used for reference:

1, rinse dry sea cucumber with tap water 1 min, and wash off the floating dust on the surface.

2. Then put the dry sea cucumber in 0-5 degree cold purified water for 24-36 hours, and change the water twice in the middle until the sea cucumber is soaked soft.

3. Cut the soft sea cucumber longitudinally from the abdomen and remove the front teeth in the sea cucumber.

4. Add an oil-free pan on pure water, cover it and boil it, then cook it for 40-60 minutes over medium heat until the sea cucumber can be gently pinched through.

5, change the new 0-5 degree cold purified water, soak for about 24-36 hours, and change the water twice in the middle, until the foam is about twice the length of dry sea cucumber.

This method has good taste.