If the quantity of shiitake mushrooms is large, you can extend the blanching time as appropriate, but not more than 10 minutes, so as to avoid the loss of nutrients and reduce the food value.

Now on the market there are fresh and sun-dried mushrooms, sun-dried mushrooms can be soaked in water for a period of time before blanching, which can reduce the bitter flavor of mushrooms to a greater extent.

After blanching the mushrooms, you can drain the water and then wrap them in a plastic bag and store them in the refrigerator freezer, so that you can take them out and defrost them every time you eat them.