Midwest's Select Bulk Substrate Casing Mix - 30 Pounds (BULK 6-PACK)
Midwest's Select Bulk Substrate Casing Mix - 30 Pounds (BULK 6-PACK) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Midwest's Select Bulk Substrate Casing Mix - 30 Pounds (BULK 6-...
Description
Description
Midwest’s Select Bulk Substrate Casing Mix – 30 lbs (Bulk 6-Pack)
Buy in Bulk and Save 25%!
Take your bulk growing to the next level with 30 pounds of our top-selling Select Bulk Substrate Casing Mix, now available in a convenient 6-pack of fully hydrated, ready-to-use 5 lb bags.
Our premium casing substrate is a non-nutritious, moisture-retaining layer designed for use on the top and bottom of your colonized mushroom spawn. Commonly used in monotubs and bulk fruiting methods, this mix simplifies the process of achieving the ideal ratios of substrate, casing, and water—we’ve already done the hard part for you!
What's Included:
- 6 × 5 lb bags of Select Bulk Substrate Casing Mix (30 lbs total)
- Pre-pasteurized and fully hydrated to field capacity
- PDF step-by-step Bulk Grow Guide included with every order
Recommended Use:
- 1 spawn bag per 5 lb bag of casing mix (5-Grain or Rye)
- 2–3 Quick-Colonizing 24–30 oz jars per 5 lb bag
- 6 half-pint jars per 5 lb bag
Premium Ingredients Include:
- Coco Coir
- Vermiculite
- Hydrated Lime
- Gypsum
- pH Buffers & Stabilizers
- Spring Mineral Water
- Unique mineral blend for added resistance to contamination
Key Features:
- Pasteurized and sealed—ready to use right out of the bag
- Long shelf life: Store at room temperature for 5–6 months, or freeze for up to 9–10 months
- Perfect water content guaranteed—no mixing or measuring needed
- Developed through years of refinement for fast colonization and consistent results
Note: This item is already discounted. Coupon codes and promo discounts do not apply. If you wish to use a promo code on other items, please place this item in a separate order.
Let customers speak for us
Man, this kit just makes life easy. Everything came fresh, clean, and ready to use — no stressing, no sketchy prep work, just straight to growing. The totes are low-key perfect for keeping things smooth, and the heater keeps the temps steady without me having to babysit. Setup was quick, and the instructions walked me through without any guesswork.
What really hit me is how stress-free it is. Mycelium took off, no contamination, and it’s been all good vibes watching it do its thing. If you want to keep it simple but still get solid results, this kit’s the way to go. Midwest kept it real with this one — chill, reliable, and worth every penny. ⭐⭐⭐⭐⭐
The Tabletop Ecosphere was straightforward to set up, with clear instructions that made the process quick and hassle-free. The build quality feels solid, and the automatic humidity control worked exactly as described, keeping conditions steady without much attention on my part. I was able to start fruiting my mushrooms within days, and the results were healthy and consistent. While it’s not a huge chamber, it’s perfect for small-batch grows and fits nicely on a countertop or shelf. Overall, it’s a reliable and well-designed unit that makes mushroom cultivation much easier.
Love it! High Quality - Doesnt fade!
I always air-dry my mushies with a fan, I was looking for something besides plates to use when harvesting my tubs. This tray is perfect, when you place this tray on a flat surface like a counter the bottom can still get air and my fan works perfect drying all parts of the mushrooms without having to rotate everything as often. This is a great buy if you already buying other stuff in your cart as the Free Shipping makes this a deal!
I got the 45 dollar all in one bag with monotub and their tubs are the best, their all in one bags are the best and cheapest, amd their substrate is the best with more mushroom growing ingredients than the competition..
I am going to buy the jars next so I can reuse for liquid culture,bag of substrate and 2 monotubs bc their tubs work wonders compare to modified bins. Simply the best in the business.
Me…I’m the dummy. I struggled with maintaining humidity in my diy monotubs. The holes were never the right size or in the right place. Not with these. Perfect humidity. And I love the clamps. It’s like a child proof lock for me, warning me not to open until ready! Very well made. I wish I had found these sooner.
I just used your sterile injection pack with great success !😎😊thanks again will recommend Midwest grow in the future😎🔥💯
Easy to set up. Works as intended. Cleaner air and feel safer knowing it disinfected the surrounding surface area.
Got it quick...and about a week later they were pinning. The week after that I was eating them.
Never have a problem with thus substrate and ive purchased MANY bags of it always good moisture levels alaways contam free always quality
My order of the substrate arrived on time and was put work right off.(I had a spawn bag already i occulated and ready.
Just colonizing now.
All went well and may use again
I am so happy with this mushroom kit. it has been everything i wanted. Thank you. This is a must buy
I used three different strains and they are all doing great, at the end of the first day its possible to see development if your got strong enough genes, very healthy after transfer aswell!!!
Easy to set up and everything seems to be populating nicely. Very excited
