A Detailed Guide to the Simple Method for Making Dried Shiitake Mushrooms
Shiitake mushrooms are rich in nutrients, and the dried product easily absorbs moisture, causing it to mold or become infested by insects. Using charcoal as a moisture absorbent to preserve shiitake mushrooms not only maintains their color, aroma and flavor, but is also easy to carry out and simple to popularize. The specific method is as follows.
A large wooden barrel or vat (1.6 m high, 1.3 m in diameter) is lined on its inner wall with cotton paper pasted on, then dried. A layer of charcoal is placed at the bottom, covered with kraft paper, then a 30 cm thick layer of shiitake mushrooms is added, and above the mushrooms another layer of paper is placed, followed by charcoal of the same thickness as the first layer. In this way, alternate layers of shiitake mushrooms and charcoal fill the container, which is then covered and sealed. To prevent the shiitake mushrooms from being contaminated, the charcoal can be wrapped in paper. If storage exceeds half a year, the moisture content of the shiitake mushrooms should be checked; if it exceeds 18%, the mushrooms should be taken out and baked. When the moisture content drops to 15%, pack them into the container according to the method described above, replace with new charcoal, or bake the used charcoal at 100-110°C for 4-6 hours and use it again.