Can't be eaten, it means the sea cucumber has deteriorated, fresh sea cucumber will not change in taste and color. Dried sea cucumbers should be soaked in cold water for 24 hours after purchase in order to soften the sea cucumber, and the cold water should be changed several times in between.

If the sea cucumber is still a bit hard, you have to boil it again, remove it from the fire and soak it for 8 hours, then change the water again, and then change the water for 8 hours until the sea cucumber is softened. Usually speaking two to three days, the dried sea cucumber is fully soaked.

Expanded Information:

Nutritional Value of Sea Cucumber:

Sea cucumber is low in cholesterol and relatively low in fat.

The sea cucumber has low cholesterol and relatively low fat content, it is a typical high-protein, low-fat, low cholesterol food, which is a good therapeutic food for patients with high blood pressure, coronary heart disease, hepatitis, etc. and the elderly, and it is very beneficial to the treatment of diseases and strengthening of the body;

The sea cucumber contains chondroitin sulphate, which is helpful for the growth and development of the human body and it can slow down the aging of the muscles, and enhance the immune system of the organism. The content of vanadium, a trace element in sea cucumber, is the highest among all kinds of food, which can be involved in the delivery of iron in the blood and enhance the hematopoietic function;

Recently, researchers and scholars in the United States have extracted a special substance from sea cucumber, sea cucumber toxin, which is a compound that can effectively inhibit the growth and metastasis of many kinds of molds and certain human cancer cells. Consumption of sea cucumber is effective for aplastic anemia, diabetes, gastric ulcers and so on.

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