Bamboo shoots can be eaten without water, but it is best to drown. Nutritionists remind everyone that winter bamboo shoots contain oxalic acid, so it is recommended to blanch them with boiling water, and then cook them after removing oxalic acid. Because oxalic acid can be dissolved in water, 60% of oxalic acid can be removed with hot water. This practice is especially important for middle-aged and elderly people and pregnant women who need calcium supplementation.

Oxalic acid contained in bamboo shoots is not a necessary ingredient for human body. If a large amount of oxalic acid is ingested, the calcium absorption rate of human body will decrease, which will also lead to problems in kidney calculi. Of course, you don't have to be too nervous. The absorption rate of oxalic acid in the body is not high, only about 10%, which has little effect on the human body. Only when it is ingested in large quantities will it cause health problems. However, just in case, it is best to "import" water before eating bamboo shoots, which is also convenient for cooking.

2. Is it poisonous if bamboo shoots are not blanched?

Fresh bamboo shoots are non-toxic if they are not blanched, because they contain a lot of oxalic acid, which will affect the body's absorption of calcium. Therefore, fresh bamboo shoots should not be cut into sections and then fried. Blanch with boiling water for 3 minutes before frying, so that most of the oxalic acid in fresh bamboo shoots is decomposed, which not only affects the absorption of calcium, but also removes astringency and improves the taste. Moreover, oxalic acid will be further decomposed in the process of frying bamboo shoots.

3. How to blanch bamboo shoots

1. Cut the winter bamboo shoots and blanch them for later use.

2, fire, put the right amount of water in the pot.

3. When the water is a little warmer, add ginger slices.

4. After boiling, pour in the chopped winter bamboo shoots.

5. Cover the pot and cook for about 2~3 minutes.

6, open the lid, confirm whether the winter bamboo shoots are ripe, and finally pick them up.

Bamboo shoots must be cooked before eating.

Many people know that beans must be cooked and eaten, otherwise they are easy to be poisoned, but when it comes to "toxicity", bamboo shoots are much more powerful than beans. Yun Orfila, Ph.D. in biological and food engineering at Purdue University in the United States, pointed out, "If all cyanosides in bamboo shoots are hydrolyzed, hydrocyanic acid will be released, up to 8000 mg/kg, and 100 mg can almost poison a person." Although this "if" is not valid, because it is difficult to release it all, "but it is quite scary to transform only a part." So bamboo shoots must be completely cooked before they can be eaten.