Dried Organic Koshin Shiitake Mushrooms 42-75mm - 70g

Koshin shiitake are flat, open-shaped mushrooms that are picked after they bloom. Between 42-75mm, they are larger than Donko Shiitake but thinner, so quicker to rehydrate. Dried shiitake mushrooms are highly prized for their meaty texture and earthy flavour.

Organic shiitake mushrooms from Japan

These premium dried Shiitake Mushrooms are naturally cultivated on special oak logs in the forests of Kyushu, a Southern Island of Japan. These Koshin Shiitake are organic, forest-grown and dehydrated to a moisture content of less than 9% for maximum umami impact. This special growing process gives these mushrooms a uniquely deep, nutty flavour that compliments their outstanding firm texture. 

Our partners, Sugimoto Shoten, work with registered growers growing shiitake to the highest standards. They were awarded the 2020 Sustainability Award by the Japanese Government for their 15-year cycle for shiitake growing: 15-year-old freshly cut oak logs are impregnated with spawn, and after two years of dormancy the logs will fruit twice a year for 5 years. Used logs are then naturally decomposed in the forest by rhinoceros beetles. Seedlings grow from the cut stumps of the trees, and after 15 years they are ready to be cut again for logs.

Plant-based umami booster

Dried shiitake is the ultimate umami booster: while Glutamate and Inosinate are widely recognised as Umami-boosters, the chemical reaction that occurs when you rehydrate these mushrooms produces enough Guanylate to intensify the Glutamate Umami by around 7-8 times – that’s a big difference on the palate.

Once rehydrated, these dried shiitake mushrooms add a delicious savoury element to soups, stir fries, mixed rice and other dishes. As the mushrooms have been exposed to the elements outside in the forest, the soaking water that is left over – or Dashi – has a very deep, rich taste and makes a superb Umami-boosting ingredient in many dishes such as vegan miso soup.

Available in 70g

After opening, place in a sealed container and store in a cool dry place.