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Seems like yeast contamination

What type of contamination is this on my agar plate?
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DIY Mold Test on Agar

Mold spores are everywhere. But how do you know what airborne contaminants are present in your home? Make a simple air s...

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Cracked & split caps

A split or cracked mushroom caps and stems are neither contamination nor a disease. These symptoms indicate dehydration...

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Cracked & split caps

Sterilization vs Pasteurization for bulk substrate

Pros and cons of subject to prevent green mold Trichoderma contamination in mushroom growing. Discussion among members o...

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Sterilization vs Pasteurization for bulk substrate