Quick Tip: How to Tell If Your Grain Is Too Wet vs. Too Dry
This is one of the most common mistakes I see, and it's easy to fix once you know what to look for. Too Wet: - Grains look shiny or glossy on the surface - - Water pools at the bottom of the jar/bag after sterilization - - Bacterial contamination (sour smell, slimy grain) within days - - Grains clump together and won't shake apart Too Dry: - Grains look chalky or matte - - Mycelium stalls partway through colonization - - Grains crack or split when you squeeze them - - Colonization takes 2-3x longer than expected The Sweet Spot: - Grains should feel firm but not hard - - A grain should crack open when pressed, showing a moist (not wet) interior - - No visible surface moisture after draining - - After sterilization, grains should shake freely without clumping My method: Soak rye grain for 12-18 hours, bring to a simmer for 15 minutes (not a full boil), drain and spread on a screen for 15-20 minutes until the surface moisture evaporates. Dry to the touch but heavy with internal moisture. If you're consistently getting contamination, check your grain moisture before blaming your sterile technique. 9 times out of 10 it's the grain prep.