Dried shiitake mushrooms are mainly made of fresh shiitake mushrooms, and the moisture of dried shiitake mushrooms is evaporated to a great extent, so they need to be soaked before eating. Generally, dried mushrooms only need to be soaked for a few hours, and it takes a long time to soak overnight. If it is at room temperature, it is not recommended to eat this mushroom again, which may breed bacteria and microorganisms; But if you keep it in the refrigerator, if it doesn't go bad after soaking for one night, you can wash it again and eat it, cook it with fire and cook it with soup. Of course, it is best not to spend the night in any food, so as not to produce toxic substances and cause harm to the body. It can be eaten after cleaning.
Soaking mushrooms in cold water is one of the most common methods, and it is usually soaked in cold water the night before eating. Generally, the short bubble time is 10 hour. For dried mushrooms with relatively large volume, it is best to spend more than 12 hours. If the soaking time is short, the surface looks soft, but you will find that some parts still feel hard when you eat it. Moreover, there are inevitably some dirty things hidden in dried mushrooms, because the soaking time is too short and it takes a long time to soak them out.
In order to speed up the soaking time of mushrooms, many people will soak them in hot water. When soaking mushrooms in hot water, the mushrooms need to be soaked for seven or eight hours, and the roots of the mushrooms are facing the water. When the mushrooms are almost soaked, you can wash away the sediment inside. This kind of hot water is usually 30-40 degrees, but if you eat hot water above 50 degrees, you can make it in ten minutes.