Grain Master (CERTIFIED ORGANIC)

Grain masters from Cap N' Stem are trusted by farms across the US & Canada as the highest quality, most consistent in the industry for bulk expansion to G2 spawn. Our 4lb certified organic grain masters are comprised of an artisanal blend of hydrated, nutrient-rich proso millet and winter rye, ideal for vigorous and clean mycelial growth. They're sterilized in our vacuum autoclave system, allowing for minimally processed grains of the highest bioavailability. Originating from cultures stored in cryogenic deep freezers and vetted routinely for phenotypic integrity, our grain masters are produced through the shortest expansion process in the industry. Carefully inoculated from agar cultures and incubated in cleanroom conditions, our grain masters are stored in 34° refrigeration prior to packaging and shipping. All this means grain masters that will arrive healthy, colonize your bulk spawn with unrivaled vigor, and lead to harvests of exceptional yield and quality.

IMPORTANT SHIPPING INFO: Orders placed online are processed within our regular business hours and production schedule. Therefore, orders placed  Monday-Friday (by 2pm Eastern Time) typically ship THE FOLLOWING WEEK. Orders placed on a Saturday or Sunday during our non-operating hours will be received the following business week and will be ready to ship the week after that. If you have questions regarding the timing of your order, please contact our office at sales@capnstem.com