Shiitake Culinary use

Fresh and dried shiitake have many uses in the cuisines of East Asia. In Chinese cuisine, they are often sauteed in vegetarian dishes such as Buddha's delight. In Japan, they are served in miso soup, used as the basis for a kind of vegetarian dashi, and also as an ingredient in many steamed and simmered dishes. In Thailand, they may be served either fried or steamed.[citation needed] Shiitake are often dried and sold as preserved food in packages. These must be rehydrated by soaking in water before using. Many people prefer dried shiitake to fresh, considering that the sun-drying process draws out the umami flavour from the dried mushrooms by breaking down proteins into amino acids and transforms ergosterol to vitamin D. The stems of shiitake are rarely used in Japanese and other cuisines, primarily because the stems are harder and take longer to cook than the soft fleshy caps. The highest grade of shiitake are called donko in Japanese. Today, shiitake mushrooms have become popular in many other countries as well. Russia produces and also consumes large amounts of them, mostly sold pickled; and the shiitake is slowly making its way into western cuisine as well. There is a global industry in shiitake production, with local farms in most western countries in addition to large scale importation from China, Japan, Korea and elsewhere.[citation needed] Because they can now be grown world wide, their availability is widespread and their price has decreased.[citation needed] Like all mushrooms, shiitake mushrooms can produce high amounts of vitamin D upon exposure to sunlight or UV light.