Can I Create My Own Mushroom Plug from Spores?

Creating a Spore Print

To create a mushroom plug from spores, start by obtaining a pure culture of the mushroom species you want to grow. Use a spore print kit or create your own by placing a mushroom cap on a glass plate and covering it with a clear plastic bag. Let it sit for 24 to 48 hours, allowing the spores to fall onto the plate. Once the print is dry, use a small brush to collect the spores and mix them with a small amount of water to create a spore solution.

Preparing the Substrate

Next, prepare your substrate by pasteurizing it to kill off any contaminants. You can use a variety of substrates, such as sawdust or straw, and pasteurize it by heating it to 140°F (60°C) for 1-2 hours. Once the substrate is cool, inoculate it with the spore solution by gently mixing it in. Use a ratio of 10-20 spores per gram of substrate. Seal the substrate in airtight bags or containers and incubate it at 55-65°F (13-18°C) for 2-4 weeks, allowing the mycelium to colonize the substrate.

Inoculating the Plug

After the substrate is fully colonized, use a mushroom plug kit or create your own by cutting the colonized substrate into small plugs. Use a sterile needle or scalpel to cut the plug into the desired size and shape. Inoculate the plug with a small amount of mycelium by gently pressing it into the center of the plug. Seal the plug in airtight containers and incubate it at 55-65°F (13-18°C) for 1-2 weeks, allowing the mycelium to colonize the plug. Once the plug is fully colonized, it is ready to be used for mushroom cultivation.