Raw materials: edible alkali

Boil half a pot of water, put it into the sea after boiling, and add a teaspoon of edible alkali. Because kelp contains special ingredients, it will expand when heated, so after adding kelp to the water, turn off the heat. At the same time, when cooking kelp, you need to pay attention to turning it over at any time to make it evenly heated. The cooked kelp is soaked in clear water, cooled, cleaned and taken out, and can be eaten.

Tip: Don't add too much edible alkali to the pot.

Tip 2: Add vinegar.

You can also add vinegar when cooking kelp. It only takes 15 minutes for kelp to soften quickly.