Salted bamboo shoots turn white because a kind of milk white material called "bamboo shoot milk" is separated from the bamboo shoots, which is nontoxic and harmless and can be safely eaten.

However, it should be noted that if the salted bamboo shoots are moldy, it is best not to eat them. Because moldy food contains a lot of aflatoxin, which is a strong carcinogen and does great harm to human health. Therefore, when eating salted bamboo shoots, if there are signs of mildew, you should stop eating them immediately and dispose of them in time.