Premium Bulk Mushroom Substrate Mix | Fully Pastuerized | Maximum Yield | for Dung & Grain Loving Mushrooms (5 LBS)

I have made several rounds of the “good stuff” using this exact product. It’s easy. I’ve never had any contamination. Worth every penny. Making your own is such a hassle.

Great product will buy again

This is wonderfully moist, rich, sterile substrate. Mixed in a monotub with about 2 pounds of mycelium, using layered method. Was careful about sterility, but with 2 pounds of mycelium, it would be tough to screw up. Bought the spawn grain bag from north spore. I had a huge yield in about 3 weeks. Could barely see the substrate through the thick mushroom growth. Just used limited oxygen, grow lights, steady temp of 75, and constant moisture. Inside moisture should be 95 to 99%. If you do these things, they will come to you.

Very good bulk substrate. I have had the most success with this product. Other bulk subs I've used have become dehydrated before successful fruiting. I have had one successful flush already and have pinning already for 2nd flush.

I’ve had good production with this sub. Good moisture, low contam rate, myc seems to like it. Kind of $$$ so I save it for new or challenging fungi.

Follow directions and it will work fine

The media could not be loaded. Omg such a amazing product I have never got contamination that was the soils fault it’s clean it’s full of nutrients for full flushes

My fungi all live in a completely sterile environment and I made a huge mistake trying this product after seeing it for sale on Amazon. I have NEVER gotten green slime but know all about it and it spread so fast that the only explanation was a gross failure on basically every piece of material that was in the package. If I had looked and wish I had J probably would have seen how bad this product was before introducing it into my closed ecosystem… very disappointed