These bags are ideal for making your own master grain spawn. Each bag contains 3lbs of pre-sterilized millet in a filter patch bag. Each bag has a self-healing injection port for use with liquid culture. Suggested retail is $16.

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Millet is considered the gold standard grain for spawn production. Unlike traditional rye and wheat, millet has a lower endospore load and is less prone to contamination. The small size of the grains also means you get many more points of inoculation per lb of grain. Most growers find they can stretch their millet spawn more than spawn made with other grains.