Sterilised Substrate Kit

Sterilised Substrate Kit: Perfect for Growing Magic Mushrooms at Home

This sterilised substrate contains a mixture of whole oat, vermiculite, perlite, and gypsum, and has a moisture content of 60–65%. This makes it the perfect environment for Psilocybe cubensis mushrooms. To use it, you’ll need either a spore syringe or, even better, a liquid culture containing the mycelium of your choice. Both will work, but a liquid culture is faster and has a greater chance of success!

This kit contains:

• One box containing a sterilised substrate
• One humidity tent/fruiting chamber
• A paperclip (for the humidity tent)
• Alcohol swap
• Injection port

Inoculating your kit at home is easy. Here’s how to do it:

1. Inject 10–25ml of liquid culture or spore solution through the injection port.
2. Place the box in an environment that stays at around 23°C. Placing a heat mat beneath the box can work, but a small heater in a cupboard creates a more stable, ambient temperature and tends to yield better (and faster) results. Mycelium doesn’t need light to grow.
3. Leave the box undisturbed while the mycelium colonises. This can take several weeks, depending on whether you used a spore solution or liquid culture, and on how stable the temperature stays.
4. Once the box is fully colonised—which will be apparent because the white, cotton wool-like substance will have covered everything—it’s time to fruit.
5. To fruit, open the box and fill it with cold water. Put the lid back on, and leave it in the fridge for 24 hours.
6. Drain the water.
7. Place it in the humidity tent, and spray the walls with a misting bottle. Using a heat mat or heater, try to achieve an ambient temperature of 23–28°C for best results. Close the bag with the paper clip. Place somewhere with natural daylight, as this helps mushrooms to orient themselves as they grow.
8. Twice a day, open the bag for a few minutes to allow for air exchange, and mist the walls.
9. Allow your mushrooms to grow. Once they are mature, you can begin harvesting them. Do this before the veil on the underside of their cap tears and releases spores.
10. Once all the mushrooms are harvested, repeat steps 5–10 until no more mushrooms grow. The second and third flushes are usually the biggest.

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