Infinite Brown Mushroom Farm - Easy 1.21+

About this farm

A passive farm that grows and harvests brown mushrooms without wasting bone meal, keeping an endless supply for food, brewing, or decoration. Uses the huge-mushroom growth mechanic — bonemeal on a mushroom, then auto-breaking the resulting huge mushroom — the same trick as a giant tree farm, applied to mushrooms. Built for Java Edition, confirmed on 1.21 and later.