You don't need to grow mushrooms in an expensive sterile environment. When I first learnt to grow mushrooms, I was told that you needed a sterile environment to grow them reliably costing thousands. My guide on how to set up a low-tech mushroom farm goes into more detail on this, but to summarize: there is a much easier way to grow mushrooms than is usually taught. You can pasteurize straw with simple techniques. It's sooo much cheaper and quicker to get setup and growing, and much easier to learn. This is a huge part of the reason why we love teaching how to grow mushrooms like this - it just makes it so much more accessible for people to get started. We give you a step by step guide into growing your own mushrooms, on a very low budget that gives great growth and yields.