1, simple cleaning in clean water to wash away impurities such as sediment and dust. Don't rub hard, and don't soak in water for a long time, because the nutrients (such as iodine, mannitol, vitamins, etc. ) In kelp, it will dissolve in water for a long time, and its nutritional value will decrease. There is a layer of white powder on the surface of fresh kelp, which is mannitol, which is very good for human body. But some people mistakenly thought it was moldy and washed it away.

2. Add a proper amount of water to the pot and keep it for 3-5 minutes after boiling. It won't take long. Too long time will not only lead to nutrient loss, but also make kelp sticky.

3. Take out the kelp and wash it in clean water. Then, you can make cold dishes, stir-fry or stew according to your own wishes. If it's cold, it's delicious to add some sesame oil to it.