Can laver be eaten for a long time?

Whether laver can be eaten after being opened for a long time depends not on the length of time, but on whether laver has changed;

1. You can eat it as long as it is not moldy and has no peculiar smell. Cabbage belongs to dried vegetables. After opening the package, it does not affect eating. It can be kept for a long time. Don't eat for too long. It has no nutrition. If stored in a dry place, the surface has no obvious change and can be eaten.

2. If the laver soaked in cold water is blue-purple, it means that laver has been polluted by toxic substances before drying and packaging. This kind of laver is harmful to human body and can't be eaten.

3. Buy laver, deep purple, thin and shiny, very fresh. Porphyra is a weakly acidic and calorie-free food. It is rarely cooked in noodles, soups and dry dishes. Porphyra soup and Four Treasures of the Study noodles in Chaoshan area are all made of laver. However, laver is weak in coldness, so it is best to add some meat when cooking to reduce its coldness.

4. Porphyra is seafood, which is easy to get wet and deteriorate. When storing, it is best to put it in a sealed and dry black plastic bag, in a clean, cool and dark place or in the refrigerator, otherwise the pigment will be reduced and the nutrients contained will be destroyed. All faded, red and moldy laver is inedible.

5. Preservation method of laver: laver is seafood, which is easy to regain moisture and deteriorate. It should be packed in black food bags, placed in a low-temperature dry place, or placed in a refrigerator to maintain its taste and nutrition.