Shiitake Mushrooms cultivation started over 1000 years ago in the Far East. They grow in deep mountain areas with fresh clean air and are gathered when the mushroom top is 60-80% opened. Our premium Shiitake Mushrooms are hand-picked, sun-dried, and free of any additives. To prepare for cooking, soak the Shiitake in cold water for 2 hours before using in your favorites soups, stews, sauces, and more.