In the catering industry, the astringency of sea cucumber is generally removed by acetic acid. That is, the sea cucumber is soaked in boiling water with vinegar for more than ten minutes, and then the alkaline substances in the sea cucumber are neutralized with acid, and then the sea cucumber is floated in clear water for 3-4 hours until the sea cucumber becomes soft. ?
Extended data:
Sea cucumber is one of the eight treasures in the world. Sea cucumber is not only a precious food, but also has the functions of improving memory, delaying gonadal aging, preventing arteriosclerosis, and resisting tumor. Sea cucumber contains almost no fat, and the protein content is more than half of the dry weight.
Sea cucumber should be soaked in cold water for 6 hours before use. After the sea cucumber is soaked soft, it should be treated with viscera, and the abdomen of the sea cucumber should be cut vertically to remove impurities from the abdomen of the sea cucumber. Rinse with cold water for 2 hours; Put the edible alkali in water, turn off the fire after boiling, soak the sea cucumber for 2 hours, repeat twice, take it out, wash the alkali taste with clear water, and put it in ice water, so that the meat quality of the sea cucumber is more elastic. Don't rub sea cucumbers with salt when washing them, it will make them hairless.
References:
People's Health Network-How to make sea cucumber?