Before you can begin anything at all, you need a sterile workplace. Mushroom cultivation is a sensitive production, and a sterile environment is very vital to the success of the project. Make sure everything in your space is clean and hospitable to ensure that the mushrooms won’t be outcompeted in the space. The best ways to lower the risk of contamination include wiping down all the work surfaces with sterilizers or isopropyl alcohol. You could also cover the space with plastic sheeting.