What are /r/GourmetMushrooms' favorite Products & Services?

From 3.5 billion Reddit comments

Back to the roots kits are simple and easy. Amazon has one on sale for $13. That is how I got started. You of course can go bigger or better, but starting small is often the best way.

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https://www.amazon.com/Back-Roots-Mushroom-Mushrooms-Gardening/dp/B00TUYGRU4/ref=sr\_1\_3?crid=1JIDD8V8VWZVD&keywords=mushroom+kit&qid=1644932777&sprefix=mushroom+kit%2Caps%2C84&sr=8-3