This is the whole chain, in order, with the honest version of what each step costs you in effort. Read it before you buy anything — it will probably save you money.
Every product we sell is one link in this chain. The further left you start, the more control you get and the more sterile work you do.
A petri dish of nutrient jelly. You isolate a clean piece of mycelium, grow it out, and store genetics that will outlive any single grow. This is where growers clean up a culture that has gone weak.
You need: Still-air box or flow hood, scalpel, patience.
Live mycelium suspended in nutrient broth, in a jar with a self-healing injection port. You draw it into a syringe and inject grain through the port — no vessel ever gets opened.
You need: A syringe, an alcohol wipe, a steady hand.
Sterilized grain fully run through with mycelium. Buy it colonized and the riskiest sterile step is already behind you — you just break the bag up and mix it into bulk substrate.
You need: Clean hands and a tub. That is genuinely it.
Coco coir, vermiculite and gypsum — the bulk food the mycelium spreads into before it fruits. This is what turns a small bag of spawn into a real harvest.
You need: A fruiting chamber or a monotub.
Steps 1 through 4 already done and sealed in one bag. Nothing sterile is ever in your hands. All four species are out of stock right now — colonized grain spawn plus a CVG bag is the closest in-stock equivalent, and it yields more.
Shop grain spawn insteadAn impatient cut into a bag that isn't fully colonized invites everything in the room to compete. If it isn't solid white, wait.
Stale, CO₂-heavy air gives you long stems and deformed fruit. Humidity without airflow isn't a fruiting chamber, it's a terrarium.
If you're doing sterile steps yourself, a still-air box beats a kitchen counter every time. Air currents carry spores you can't see.
Agar is not a beginner product. Starting three steps earlier than your setup allows is the most expensive mistake on this page.