Kelp is a kind of vegetable with high nutritional value, but overnight vegetables are not edible.

It is best not to eat leftovers, soup, cold dishes and pot-stewed food that stay overnight at room temperature, because it is easy for bacteria to exceed the standard, causing diseases such as diarrhea. The general advice of the scientific community is that leftovers should be stored at room temperature for no more than 4 hours, and not more than 2 hours when the temperature is high.

For cold vegetables, it is generally recommended to eat as much as possible, and throw away the rest to avoid food safety risks.

Extended data:

Edible kelp silk:

Cold kelp: Just soak kelp, cut it into slender shreds, blanch it in boiling water to control drying, and add seasonings such as salt, ginger, chopped green onion and soy sauce directly according to your own taste. Cold kelp silk is long and fragrant, and it tastes particularly refreshing.

Spiced kelp silk: kelp should be washed and soaked first, then cut into shreds, boiled in a pot for 20 minutes, fished out, washed with clean water and dried. After dried kelp, put it into a basin with various seasonings, stir it evenly, and put it into a jar for pickling 10 day. Although it is a bit complicated and takes a long time to make spiced kelp, it has the effect of softening blood vessels and is suitable for middle-aged and elderly people to eat frequently.

In fact, there are few taboos on kelp, so it will be very helpful to health as long as it is eaten in moderation.

References:

Baidu encyclopedia-kelp

References:

People's Network-Attention! These overnight foods can't be eaten

References:

People's Network-How to easily boil kelp? What is the best thing to eat with kelp?