Dried mushrooms are fresh mushrooms that have been dehydrated to remove moisture, extending their shelf life and enhancing their flavor. Common varieties include shiitake, porcini, and chanterelles. They are often used in cooking to add depth to soups, sauces, and risottos. To rehydrate dried mushrooms, soak them in warm water for about 20 to 30 minutes. This process restores their texture and flavor, making them suitable for various dishes. Dried mushrooms are a convenient pantry staple, providing a rich umami taste and nutritional benefits, including vitamins and minerals.