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

Excellent quality

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.

no joke, i opened a bag of this up used half then rolled up the bag and threw it in a cupboard and forgot about it for at least 8 months. Found it looking fresh as the day i tossed it pasteurized it in my instantpot just to be safe and it is still going strong.

I used this along with their 5 grain spawn for my first few ever mushroom grows about a year ago and everything went great. No contamination and bountiful harvest.

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.

Decent substrate allows me to do 3 flushes every time I run a new batch of caps. most I got was 4 for double the price from a different company. I'll stick with this average quality substrate. It works good. Does the trick.

Best quality online

Wow after wasting months of hard work. All freakin green . I tried this and the coco -coir. Both massively wet . Like so much water in both . No I’ve been doing this for over 7 years. Faced a lot of hiccups while growing but for both products to fail ! Freakin months man!! Some know how this can be, truly messed up. I will never use your products ever again.