Are these mushrooms moldy or okay? 6a43ab0d22417 by Shroomok

Image from forum thread Are these mushrooms moldy or okay? post #813 #7

You can find this image in forum threads:

• Are these mushrooms moldy or okay?

  Hey, they don't look moldy at all! What you have is only thick Reishi mycelium. The fruits on your block haven't yet started to form. There are only 2 pins that tried to form fruits. Anyway, you can use such mycelium as a regular fruits, no problem.Was it your very first experience in mushroom cultivation? Do you know exactly which Reishi species you’re growing? Depending on the species their mycelium (and ofc mushrooms) may have different colors: red, yellow, brown or even black.Let me show you a few examples (see photos in attachment in better quality). All of them are Reishi, but they are different species. And all of them are absolutely healthy :-) If I post all these photos on reddit, people will 100% identify them as contaminated lolGanoderma lucidum (Red Reishi) with healthy red spots during bulk substrate colonization:Red reishi fruiting block during colonizationAnd bright red fruits during fruiting:Red Reishi during fruiting phaseGanoderma sinense (Black Reishi) with healthy brown and black spots:Black reishi fruiting block during bulk colonization phaseGanoderma multipileum (Antler Reishi) with yellow-brown-red color of mycelium and fruits:Antler Reishi red-brown mycelium and pinsAnd here is moldy area in Red Reishi fruiting block:Penicillium mold vs mushroom myceliumHere is mold on Antler Reishi (Ganoderma multipileum) fruits:Moldy Antler Reishi fruitMold on Antler Reishi fruit (closer view)Q-tip test for moldy areaHope this info will be helpful :-)P.S. Also this Day-to-day Reishi growing diary will be helpful for your future attempts with reishi ;-)

Uploaded on Jun 30, 2026

Open full-size image [2560 x 1440 pixels]