All MUSHROOM SUBSTRATES

Mushroom substrate jars are a popular choice for many home growers because they have a lesser chance of becoming contaminated when compared to grow bags. Jars also colonize very fast, usually within 3 weeks. Each jar lid features a self-healing injection port and synthetic .22 micron gas exchange filter. All of our substrates jars are made-to-order and shrink wrap each jar to lock in freshness. 

Mushroom substrate bags are less expensive than jar substrates because they weight less than glass and are cheaper to ship . Sometimes bags are subject to contamination because there may be a defect in the bag like a pinhole or bad heat seal in the bag. For the most part bags are reliable but just be gentle with them and not force air in and out of the bag and you should be good. 

Let customers speak for us

from 42 reviews
Boy was i wrong!

So i have been going about this the wrong way and it was free!!! Woot woot! In 20 days ive gone from dissatisfaction to holy crap its working just spawned to my monotub 3 days ago and already looking promising

Mike G.
Free Monotub Build & Grow Guide
Great product!

exactly as described

D.P.
BRF Jars - Organic Mushroom Substrate (12 Ct)
Very well packaged

Very well packaged, sterile, came ready to use. I will purchase these again when needed.

Todd A.
Empty Sterile Spore Syringes & Sterile Injector

Haven’t used yet, but shipped fast like an Amazon package and was well packaged with a gloves and mask for sterilization I didn’t know it came with !!! Wooohooo

Allyn
Rye Grain Spawn Jar (Organic) Quart (1 lb)

They never disappoint me

Lindsey
BRF Jars - Organic Mushroom Substrate (6 Ct)

Far better to deal with than Mycology Supply. The pellets were great! Made a great substrate for my Son’s shiitake when mixed with some wheat bran.

Customer
Pure Oak Pellets For Mushroom Substrates 5 lb

Beautiful package best stuff!!

R
Coco Coir Bulk Casing Mix Bag (5 lb)

Absolutely love their products!!! Beautiful packaging amazing customer support 11/10 will buy again!!!

R
Rye Grain Spawn Bag Organic (2 lb)
A few speed bumps but great customer service.

I ordered a grow bag bundle but was disappointed when I saw that one of the two bags was defective and came with a hole in it. I reached out to the company and they assured me it was an unusual occurrence and sent me TWO new bags as a replacement. Very happy with how they responded and fixed the situation.

Jacob T.
Mini All In One Mushroom Grow Bag - Rye & Casing Mix
Harassing

Don't like to be pressed to do a review. Like the business at first many stores same product available. I don't do business with a company that harassing me.

Jr
Fine Gypsum Powder For Mushroom Substrate - Food and Lab Grade
Hemp seed oil

Works great straight or mixed. My skin is benefit ing the most due to psoriasis and psoriatic arthritis among many other benefits

Kay D.
8 oz Hemp Seed Oil Organic Cold Pressed Unrefined Virgin Filtered

It works and arrived on time

Liam
3" 3M Micropore Filter Tape - Great For Monotubs

Worked great, Genuinely Sterile.

Liam
Rye Grain Spawn Jar (Organic) Quart (1 lb)

Free Monotub Build & Grow Guide

Tyler C.
Free Monotub Build & Grow Guide
Premium is correct

Worked perfect. Need more

Robert D.
Premium Agar Agar Powder - Made in USA