Dry Bulk Substrate for Mushroom Cultivation (Coco Coir, Vermiculite, Gypsum) | Produces 10 Pounds of Pasteurized Substrate, Enough for Two Boomer Shroomer Inflatable Monotub

Excellent quality substrate mix. The price is also more than reasonable. I was able to make out 2 monotubs and 6 shoe boxes with what I got from this kit and still have a least a quart left over. Heat or pressure sterilization before you use this substrate or any online bought substrate is critical. This simply mean you have to mix the substrate mixture with boiling water or pressure cook it. Also it can't be just kind of hot or luke-warm. The water has to be at a rolling boil when you pick it up to dump it in. I have used two methods the first is the easiest: I put my substrate mix in a generic hardware store bucket (make sure when you get one you include a sealing lid preferably with a rubber gasket! Hit it with iso when you get it home for good measure!) from there you put whatever ammount of boiling water; you have decided to use I honestly kind of wing it every time. I just make sure that the ammout of water I add is sufficient to cover the mix. Then once boiled-water is poured in put the lid on the bucket (yes the plastic will be hot and the lid will swell) the heat that is trapped in the bucket with the substrate will kill off all the microbes, bacteria, mold, mildew, etc. you have to let it sit for at least 8 hours in my experience if you try mixing your grainspawn with this super heated substrate the small ammount of still escaping steam will cook your mycelium alive like an omlet so don't rush it (it's also really easy to misjudge how hot the substrate is then burning your hand when reaching in to grab some, so be careful!) The second method just replaces the bucket with a large gasketed cooler with toggle locks. I just figured out that I can microwave the substrate to purify it as well so I got a large cheapo microwave off FB market and I use it only for sterilizing substrate and genetics saving equipment like glass petri dishes. It should be well thought out that this isnt a one time sanitize all thing - you can develop a contaminated substrate in your bucket while waiting to use it for another tub weeks later. That's where the microwave came in for me now I can dole out as much as I want and steam it clean in the microwave. So far I havent had any contams. I have how ever had some serious success! Thanks my myco peeps and I hope this helps someone.

This substrate material is a very simple and easy way to make a great substrate with the proper field capacity. Just follow the directions, which are included in the package.I’ve had great results with full canopy fruiting.This is my go to substrate and I’ve haven’t had issues with contaminations caused by this product.Good luck with your grows. Mush Love!

After my spawn bags were fully colonized, I started prepping my monotub. The lot comes with step by step instructions with extremely easy to understand steps for beginners. I feel like 16cupa make not be quite enough. Nevertheless, after breaking my spawn bag open and that Earthy smell hit me, I knew nothing was contaminated. I mixed up the spawn with the bulk substrate (that I pasteurized the day before) and within the first couple of days, the mycelium really started to grow and take over with humidity everywhere, letting me know it's still growing. I can't wait to harvest!! Great for anyone from beginner to pro at a great value too!!

Everything was as described and worked perfectly

Great products. I had an issue with the first shipment missing an item, but customer support fixed the problem. Customer service through the company was fast in responding to my issue via email and you can tell they really care about their products and customers.

Everything is well explained and numbered everything is already weighed out for you also! They include a nice little trippy sticker!Will definitely be ordering again!They have this bundle on their site but shipping was way quicker through Amazon:)

It works but I'm not really happy with the way it works.

Used exactly as instructed in a fully sanitized 5g bucket. Came out PERFECT. Ended up just closing and taping the bucket shut around the seal because I didn't need all of it at the time. A week and a half later opened it up and its still absolutely perfect no contams nice mix. I much prefer this over measuring things out myself. Worth the bit extra rather than an unknown coir brick that's fiddly with getting to field capacity.