Mushroom Growing Supplies: The Complete Equipment List

Most growers buy in the wrong order. They buy a flow hood before they have ever poured a plate, or a pressure canner before they know whether they enjoy the work. The cheapest route into cultivation is to start at the end of the process and work backwards: grow a kit, then grow from spawn someone else made, then make your own spawn, then work with cultures.

Each step back down that chain adds equipment. Only the last two steps need anything that could be called a lab.

This is where cultivation becomes a skill rather than a purchase. You are moving living tissue between sterile surfaces, so the equipment list is short but the technique matters more than anywhere else in the process.

Buy the scalpel and the sealing film first. Petri dishes and pre-poured plates are cheap enough that pouring your own is a false economy until you are working at volume.

Grain and supplemented sawdust have to be sterilised, which means wet heat under pressure. Straw and coir only need pasteurising, which you can do with hot water and no pressure vessel at all.

This is the single most expensive category for a home grower, and the one most worth buying once. A canner with a weighted gauge and a replaceable gasket will outlast several cheaper units.

Contamination is airborne. You are either removing the air movement around your work, which is what a still air box does, or replacing it with filtered air, which is what a flow hood does.

A still air box costs about the price of a storage tote and does most of what a beginner needs. A flow hood only earns its cost once you are doing long sessions or many transfers in a row.

Substrate work is weighing, hydrating and mixing. The only piece of equipment that genuinely changes results is an accurate scale, because field capacity is a ratio and guessing it is the most common reason a bulk substrate fails.

Coco coir and vermiculite come compressed, which makes them cheap to ship and easy to store. Hardwood and supplemented sawdust are heavier and usually worth buying locally.

Pests in a grow room are rarely a feeding problem. Grain mites and fungus gnats both move mould spores from one container to the next, so an outbreak usually surfaces as a run of contamination rather than as visible insects.

Almost nothing here treats an infested container. There is no product that kills mites inside colonised grain and leaves the mycelium alive. Spend the money on confirming what you have, on a dry barrier between the pests and your shelves, and on stopping the next sack of grain from bringing more in.

Filter patch bags let you sterilise, inoculate and fruit in one container. Sealing them properly is what keeps that patch honest; a folded and taped bag is an open bag.

Sealer width is the only specification that really matters. Buy wider than the bags you use now, because the bags get wider as you scale.

A fruiting chamber does three things: holds humidity, exchanges air and keeps light and pests roughly under control. A monotub built from a storage tote does all three passively and costs very little. A martha tent does them actively and holds far more substrate.

Choose by how much substrate you fruit at once. One or two tubs a month does not justify a tent; six blocks a week does.

Size by block count, not floor space: a martha holds 4-12 blocks, a 3x3 holds 12-18, a 4x4 holds 20-30 and a 4x8 holds 45-60. Bigger is harder rather than easier, because humidity, heat stratification and condensation all get worse with volume, and past a 5x5 a sealed room usually beats a tent.

Once a chamber exists, the equipment that improves results is whatever measures and holds conditions steady. A controller that switches a humidifier on and off beats any amount of manual misting, because it works while you are asleep.

Measure before you control. A cheap hygrometer in the chamber for a week tells you whether you have a humidity problem, a fresh air problem or neither.

Fresh mushrooms have a short life. Drying is what turns a flush into something you can store, weigh, sell or cook from months later, and it is the point where a hobby grow starts producing something worth keeping.

Tray height matters more than wattage. Whole mushrooms on a shallow tray get crushed by the tray above, and slicing to fit costs you presentation.

Foraging needs almost nothing: a basket that lets spores fall through, a knife you can clean, and a regional field guide you trust. The guide is the only item where the cheap option is a bad idea, because a book written for a different continent will show you the wrong look-alikes.

Never eat a wild mushroom identified from a photograph alone. Use a regional key, and check with someone experienced before a first taste of any species.

Everything above is equipment, which is why it comes from Amazon. The consumables are a different matter: grain spawn, agar, cultures and substrate are perishable, and shipping them from far away costs you viability.

We make these in Brantford, Ontario and ship them across Canada. If you are comparing, the thing to ask any supplier is how old the culture is and how it was stored.