Natural log-cultivated dried shiitake in Japan are substantially produced through organic cultivation.

In Japan, shiitake farmers do not use agricultural chemicals or fertilizers at all in the cultivation of shiitake mushrooms on logs, from beginning to end.
 

Because the pests that eat dried shiitake appear after drying, there is no need to use chemicals during cultivation.


Furthermore, they dry shiitake just after a crop, by all means, to make the shiitake look delicious; they also don't need to use chemicals for retaining freshness.

As the Japanese Chestnut Oak used in cultivation are cut in mountain forests far from other crops agricultural fields, no residual agrarian chemicals are detected in monitoring inspections.


Natural log-cultivated dried shiitake in Japan are substantially produced through organic cultivation.

As shiitake farmers consider the non-use of agricultural chemicals and fertilizers to be the norm, they do not leave records that can be used in organic certification.

Natural log-cultivated dried shiitake produced in Japan is all grown without agricultural chemicals and fertilizers.


Therefore, obtaining organic certification would not differentiate a product, and thus would have little meaning.

Accordingly, shiitake farmers do not have the motivation to record unneeded entries concerning cultivation and to acquire organic certification.