Shiitake 3790 grain spawn.

We imported the 3790 culture from America, is a strong performer giving great yeilds. East to grow on hard wood pelletes with wheat bran supplimentation. Find Traegar BBQ pellets and wheat bran in a 80/20 ratio. 

It is the perfered culture of many commercial growers. 

Shiitake 3790 - Lentinula edodes Grain Spawn