According to nutrition experts, dried shiitake mushrooms contain more vitamin D, mainly because of the conversion of ergosterol into more vitamin D under sun drying. Therefore, the purchase of fresh mushrooms placed in the sun after the sun can promote the production of more vitamin D.

When soaking dried mushrooms, it is best to use warm water at 20°C to 35°C. This will not only make it easier for the mushrooms to absorb water and soften, but also maintain their unique flavor.

It is worth noting that, when eating dried mushrooms, the soaked water is best not to throw away (can enter the dish), because the health function of the mushroom purine soluble in water, high content of water in the soaking mushrooms.