How to use Shiitake stems in the tastiest way possible

Place the dried Shiitake stems in water for a while and remove any dirt when it becomes soft.

Place the stems in the water mentioned in the ingredients and leave in the fridge overnight.

Strain using a tea-strainer or equivalent, and use in cooking.

Dried Shiitake produced in Japan are pesticide-free, so Shiitake stem dashi will last as long as an opened carton of milk.