Do mushrooms need a clean environment to grow?

Mushrooms can be very sensitive to competing organisms or spores. It is vital that the area where you are doing your mycology work is extremely clean and sterile. It is worth taking the time to deep clean any room or surface you are using before doing any work with your mushrooms. Close all windows and doors to allow any particles in the air to settle. 70% isopropyl alcohol is recommended for use in sanitising your work area as you work, you can pick this up in most pharmacys. A cheap and mostly effective solution is to make a “still air box”