Dried Shiitake Mushrooms (Koshin)

Prefecture: Oita
Producer: Matsuoka Shiitake
Ingredients: Koshin shiitake mushrooms (dried) (produced in Oita prefecture)
Vegan, Gluten-free, Dairy-free, Soy-free
Size: 30g
 

Succulent and juicy shiitake mushrooms are the base for an earthy, savory vegan dashi (broth) that is made from rehydrating dried shiitake. The shiitake can then be used for cooking.

Shiitake contain an abundance of guanylic acid which is one of the main drivers of umami and compared to raw shiitake, dried shiitake have more concentrated flavors and nutrients. Koshin shiitake are larger and flatter than the thicker donko shiitake as they are picked after the cap of the mushroom has bloomed. Since it requires less time to rehydrate, koshin shiitake are an easier and quicker choice compared to donko shiitake.

The thin, dark brown vegetarian/vegan dashi created from shiitake is rarely used on its own and is typically combined with konbu or katsuo dashi to produce a more robust flavor.

Matsuoka Shiitake grows their prized shiitake for two years on kunugi (Japanese sawtooth oak trees) and then dries them for 24 hours to concentrate the umami flavors and rich aroma.

How to prepare: The best way to get the most out of dried shiitake mushrooms is to slowly rehydrate them at a low temperature. Gently wash the shiitake and place in a zippered storage bag or sealed container with enough cold water to soak. Remove the air from the bag, close tightly and place in the fridge for about 10 hrs. When the mushrooms are reconstituted the dashi is ready to be used. You can also remove the stems from the shiitake and slice the caps into your favorite soups or dishes. 
 

Suggested use: Suitable for osuimono (clear soup), miso soup, nimono (simmered dishes), chawanmushi (savoury egg custard), stir-fried dishes, noodle soups or steamed fish.