Is laver fake? How to tell the true from the false?

First, we can observe the color of laver. Porphyra contains phycoerythrin, so the color of laver we usually buy should be dark brown or purple brown, which has natural luster.

In order to save costs, some black-hearted manufacturers will sell cheap seaweed or seaweed as laver. The second method is to soak a small piece of laver in water for a period of time. The color of the water soaked by laver is basically unchanged. If the color of water turns bright purple, even the same color as ink, it must be false; Another method is to take a small piece of laver and roast it with fire. After baking, good quality laver should be green, just like the color of seaweed. If it turns yellow after baking, it is inferior laver;

The last method is to distinguish by taste. Some fake cups are actually made of plastic film. There is nothing wrong with the color of the soaked water, but it will not be chewed in the mouth, and it is still very elastic when it is torn by hand.

Porphyra and shrimp skin soup for supplementing iodine and calcium

The iodine content of laver is very rich, almost 100 times that of grains and vegetables! In addition, laver is rich in iron and vitamin B 12, which are essential nutrients for hematopoiesis. Shrimp skin is rich in calcium, and their compatibility complements each other, which has certain curative effect on iron deficiency anemia and osteoporosis.

If laver is red, it is generally not recommended to eat. Because mold can produce toxins and affect health. If you must eat, there are two points to pay special attention to. First of all, careful cleaning can remove some mold. If laver is moldy, it will often rot when washed, so don't eat it at this time. The second is thorough heating. Porphyra that has turned red should not be boiled in boiling water for convenience, but should be thoroughly heated and cooked before use.

Porphyra can be kept in the refrigerator. General ingredients can be kept in the refrigerator, and laver is no exception. If you want to store fresh laver in the refrigerator, you need to dry it in advance, and then pack the dried laver in a vacuum bag and put it in the refrigerator. This can be kept for a while. If you buy dried laver from the supermarket, you can keep it in the refrigerator as long as it is vacuum packed.

Although laver can be put in the refrigerator, it does not mean that laver can be put in the refrigerator under any circumstances. For example, laver should not be put in the refrigerator when the package is opened. The reason is that laver is easy to regain moisture and deteriorate, and the refrigerator belongs to a low temperature and humid environment. If laver is unpacked and put in the refrigerator, it is likely to go bad. Therefore, it is recommended that you put the opened laver in a food bag, store it in a low-temperature and dry place, or eat it as soon as possible.

Laver is a very delicious food, and many people like it very much. However, it is not advisable to eat too much laver at one time. This is because laver is cool and belongs to cold food. If ordinary people eat a lot, it may lead to diarrhea. Therefore, people with poor digestive function and spleen deficiency need to eat a small amount, while people with spleen and stomach weakness and abdominal pain in loose stool need to eat carefully.