Refill Kits
Refill your shoeboxes and monotubs with premium CVG substrates and ready-to-go grainbags. We make restocking easy with high-quality materials for optimal growth and fast results.
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6qt Shoebox Refill Kit | Mushroom & Grain Combo
4.67 / 5.0
(24) 24 total reviews
Regular price From $15.99Regular priceUnit price / per$19.99Sale price From $15.99Sale -
12qt Shoebox Refill Kit | Mushroom Substrate and Grain
4.67 / 5.0
(24) 24 total reviews
Regular price From $19.99Regular priceUnit price / per -
Small Monotub Refill Kit
Regular price $18.99Regular priceUnit price / per -
Medium Monotub Refill Kit
Regular price $24.99Regular priceUnit price / per -
Large Monotub Refill Kit
Regular price $29.99Regular priceUnit price / per -
Extra Large Monotub Refill Kit
Regular price $39.99Regular priceUnit price / per -
Monotub Mushroom Growing Kit – Complete Setup
Regular price $40.00Regular priceUnit price / per
Featured collection
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Not So Simple Mushroom Substrate - Advanced Mix for Superior Growth
Regular price From $10.00Regular priceUnit price / per -
MEA Agar for Fungi Culturing – Sterile, High-Quality Malt Extract Agar
Regular price From $7.99Regular priceUnit price / per -
Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
Regular price From $7.99Regular priceUnit price / per -
Drippy Corn Mushroom Grain Spawn
Regular price $10.00Regular priceUnit price / per -
3lb Milo Sorghum Mushroom Sterile Grain Bag
Regular price $10.00Regular priceUnit price / per
Let customers speak for us
from 624 reviews
Arrived three days earlier than what was stated

Excellent

Came with 2 even stacks, double sealed, stacks individually wrapped for.extra protection. Free of any issues or damage, no contamination and I'll be ordering again soon!!!
Highly recommended!

Great product. Very good pricing with high quality here at Mycologysimplified. I am very glad i found this company. As always the packaging couldnt be better. Double baged and vacume sealed. I inoculated the bag 3 days ago and mycelium has started. I will keep you posted with the substrate i get for this bag

Always a great product with great service!

This is the best presentation I have seen for any spawn bag ive tried and ive tried quite a few. Pristine double bagged /vacuum sealed/bubble wrapped and the bags patches/ports are top quality. The grains appear to also be top tier and the bags have not lost seel at all. I just got them so i cant confirm the speed of colonization yet but from my experience this i couldnt be less worried about it. You get what you pay for.

The best in the business. Hands down never a problem besides the amount i buy lol.i could make my own but i trust these more than me

Quick shipping from high quality assured company! Literally the best customer service 👌

Mycology simplified products are superior at a good price. Customer service especially outstanding! We are customers for life!

I have to say, I dont know how the packaging could be any better. I noticed mycilium growth starting within just 2 days. So far so good. I highly recommend this product. The spore i am using is a “dung” loving mushroom and it is doing just as good, if not better with this Mycology Simplified Simple Subtrate.

I like these ones particularly. They go on and off easily. I will be purchasing more

Thank you. Great like always. Love the slap.

perfect for me to start my Dahlias with rich soil!

Awsome customer service. Incredible quality on the plates I received. Absolutely gorgeous. Super fast delivery! Highly recommend!

Perfect for what I need