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Quantity
1
Rye Berry Mushroom Jar – Sterilized 1 Quart for Mushroom Cultivation
Out-Grow’s Rye Berry Mushroom Jar is a professionally sterilized 1-quart substrate designed for reliable, fast colonization. Rye berries are one of the most trusted grains...
Reviews
4.5
10 ratings
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Arrived extremely fast and packaged next level well. Only complaint so far, i wish i could put the jars upright after inoculation in the box they come in but thats just for convenience. Will update in 2-3 weeks with more thorough review.
TM · 9 days ago
100% colonization every inoculation. I have used around 10 of these . I have changed from bag to jar .. works better for me.
T
Thomas · January 31, 2026
I have used these jars almost exclusively for my past 3 flushes. The last 5 jars have been perfect and it averages 36-49 days depending on strain. I plan to experiment with other spawn mediums but this is definitely my go to.