The green invader that kills grows before they start — and the sterile technique secrets that keep it out for good. Trichoderma green mould contamination — Psilocybe cubensis grain spawn This article is part of the Spores Lab Contamination & Sterile Technique pillar. For the complete guide to contamination biology and prevention, start at sporeslab.io/post/sterile-technique-preventing-contamination-in-mushroom-cultivation You check your grow bag after five days of coloniz