Microppose Small Mushroom Monotub (Mark 1)
Microppose Small Mushroom Monotub (Mark 1)
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Once again it’s Microppose making more useful stuff for people that like cultivating decent crops of mushrooms at home. This particular model was designed around the concept of “what if we filled a topless Darth Vader full of grain spawn and substrate instead of angry burnt flesh?”. You’ve simply got to admire their vision.
Made out of dense polypropylene, this monotub will last a good long time, meaning you can just crack on and get those mushrooms grown. It’s got four air exchange holes in specific places so that proper ventilation can occur and your little guys can breathe, and obviously it’s compatible with the standard Microppose 2” filters and plugs, and their liners (these are also included in the kit), so if you ever need to restock on those bits, we can hook you up.
Surface area is pretty important, and the difference between using a grow bag or all-in-one “inject and forget” kit is that whilst they’ve got the density of substrate to be able to carry a suitable amount of moisture (don’t forget your mushroom are around 90% water), they don’t have the surface area to match a monotub, and it’s the surface area that the mycelium will fruit from. You ideally want a balance between depth of substrate and surface area; this box has a 12” L x 12” W x 12 H form factor, so it’s small enough to stash somewhere, fits on a wire shelf nicely, but deep and wide enough to make sure you get a nice yield. The surface area would be around double that of our beginner grow kits if you used the space fully.
It’s also stackable if that’s your kinda thing.
Please note: Microppose have been acquired by Midwestern Grow Kits so the branding on the tub may change in the future.
What’s included?
- One Microppose Mark 1 Small Mushroom Monotub
- One Microppose “premium” liner (not sure how “premium” a liner can be but that’s what they called it)
- Iso Spray
- 4 x 2” Microppose filters
- 4 x Microppose plugs
We’ll even bundle in a grain and substrate combo at a discount (and some gloves if you like gloves) if you need some supplies to fill it up. Bargain.
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When your order arrives:
Take out of the packaging!
The number one cause of contamination is leaving bags in the original packaging for too long. Remove all sterile grain and substrate from the packaging when it arrives. Allow air to reach the white filters.
Check for damages
Before you get to work, have a quick check of all bags to ensure no splits or damage has occured during transit. If you find any damages or issues
Storage
Store grain and substrate in a cool dry place (not the fridge). Use by date on the bag although the highest chance of success comes from using the product at it's freshest.
Microppose Small Mushroom Monotub (Mark 1)

Video Instructions for inoculation
We made a nice little video ages ago which shows how to inoculate your grain bag.

Have questions about your sterile grain?
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Manufacturer
MycoPunks Ltd
Unit 24A Morelands Trading Estate, Bristol Road, Gloucester, GL1 5RZ, UK
Responsible Person
Euify OSS B.V. T.A.V. (MycoPunks Limited)
Prinses Margrietplantsoen 33, 2595 AM, Den Haag, The Netherlands
Safety Information
May contain the following allergens : Rye, oats, wheat, millet, coconut, peanuts, corn, red dari, sorghum, horse manure, soya.
Keep out of reach of children
Risk of suffocation
Reuse / Recycling / Disposal
Contents can be composted.
Check local waste facilities for polypropylene recycling.