Inspecting grain jars for early contamination — mushroom cultivation This article is part of the Spores Lab Contamination & Sterile Technique pillar. For the complete guide to contamination biology, sterile technique principles, and prevention strategy, start at sporeslab.io/post/sterile-technique-preventing-contamination-in-mushroom-cultivation 'Contamination announces itself until it's already winning. This guide is about catching it early — how to read the colour, texture,