Sterile Organic Rye Grain for Mushroom Spawn Production

THIS PRODUCT IS MADE IN BATCHES CLICK HERE FOR LEAD / DELIVERY TIMES. THIS PRODUCT MIGHT NOT SHIP SAME DAY.

The humble rye grain, Seceale cereale, has been around for possibly 13,000 years according to Wikipedia, however it was only in 1973, Birmingham, UK, where Jonathan Bourbon decided to lend his namesake to a new drink that he’d invented and made it matter. Before this everyone had assumed that rye was absolutely pointless unless you were on Slimming World and needed to eat crackers. At this time, they were correct.

However, thanks to the boffins in the MycoPunks lab, humanity has since discovered that rye actually makes a pretty sweet bit of food for mushrooms to eat, because they don’t care about eating things that taste nice, they just want the nutrient source. Rye’s got that in abundance, so thanks to modern science we’ve now discovered a staggering two things you can do with rye, you can make it into bourbon to put in a nice drink or you can grow some happy mycelium on it. 

Just to get in front of any little contrarians out there: Bourbon biscuits have nothing to do with rye grain so if you try and bring biscuits up on our helpful Discord community channel then you’ll be soundly mocked by the Rye Crew.  

What do we do with the rye to make it ready to grow mushrooms on? We wash it, then we soak for 24 hours, then we simmer it for a little bit. This makes sure that the grain is a bit easier for the mycelium to access, and helps the rye absorb a bit more moisture. We then put it into either a 4T or a 10T Unicorn bag, depending on how big you want it, and we pressure cook it for 2.5hrs at 15psi so that anything nasty that might have been in there is as dead as fuck. 

Why choose rye for your mushroom grow? It can absorb a fair bit of moisture without bursting, and it’s full of copper, magnesium, various proteins, and B vitamins, which makes sure your mycelium gets the best possible start in life. Awwww, that’s nice, isn’t it?

✅ Perfectly hydrated rye keeps your mycelium in top nick
✅ Pasteurised for 2.5 hours at PSI so proper clean
✅ Loved by most of the mushrooms that you’d bother to grow
✅ Excellent bulk discounts available
✅ Needs to be added to your substrate of choice once colonised

Have more questions about grain? Check out our Grain FAQ!

Storage:

• Remove from the packaging straight away
• Keep it somewhere cool and dark like the inside of one of those caves they age cheese in
• It’ll be good for around six weeks but you should use it as soon as you can
• Don’t freeze it
• Keep upright please, and avoid blocking the white filter patch

Wanna try some different grains? Click here, we’ve got that much grain we’re making Warburton’s jealous…

We made a video showing how to inoculate your grain with mushroom mycelium or spores.