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Slightly Grey Greenish color on some of the grain, other areas growing healthy mycelium. Is this contaminated?

New grower here. Is this contaminated?

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The purplish tint on the bottom of one of the pictures is just a reflection from a purple led light.

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8 months ago

Snow-white area at the bottom is mycelium. But yes, the gray-greenish powdery patch is contamination. It will likely turn bright green or green-blue color within the next 24-72 hrs.

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