Basics : Milo (Red Dari) Sterile Grain for Mushroom Grain Spawn
Lead Time
3-5 working days• Expected to ship: August 17 - August 18, 2026
This might well be my favourite grain experiment so far, the early test were remarkable. Super quick colonisation, Blue Oyster from 20% break-and-shake to fully colonised in 48 hours. Mental.
It’s part of the job that’s pretty cool, to be honest. We get to dick around and try out different things, if they work we put them out to test pilots in our Discord community, and then if everyone’s happy we roll it out for general use.
So why red dari instead of the other grains? Once again, it’s a bit of a personal choice thing. Red dari’s a slightly larger grain than millet, but has a much cooler name. It’s like a gang name. If you were called “Red Dari” in your friend group then you had a cooler name than the poor fucker that got called “Millet”, hands-down. Here’s the secret though: Red Dari is only one of this little secret agent bastard’s names. It’s actually sorghum (sorghum bicolor), and god this gets into some conspiracy theory style shit because another name for it is “Giant Millet”. What a massive and awful fuck-you to millet, it just never ends.
The grain’s got a great selection of vitamins and minerals that you need to grow big healthy mushrooms, like B1 (thiamine) and B3 (niacin), you’ve also got your magnesium and iron in there which all helps. Phosphorus? Yup. It’s the right blend that’s going to make sure your mycelium has all it needs to produce some decent flushes once you’ve added this to your substrate.
In the non-mycological world, people use it for normal grain stuff, like making bread, booze, syrups, that kinda stuff due to the carbohydrate content. It’s really bloody good for growing mushrooms with though so let's do that instead.
We give it a nice wash like it was a loved one, bag it up, then pressure cook it to make sure it’s pasteurised like we would an enemy, and that’s about it, c’est magnifique!
✅ Red, and it actually does go faster so that’s interesting
✅ Sterilised to perfection
✅ Can make booze out of it if you’re desperate
✅ Buy more? Pay less!
✅ Needs to be mixed with whatever substrate you like once colonised
Have more questions about grain? Check out our Grain FAQ!
Storage:
- Use it quickly if you can but it’ll be good for six weeks
- Cool and dark/yes once more/store it like your peppercorns
- Keep upright, don’t block the filter or it won’t breathe
- No freezing, please
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We only use official Unicorn BagsTM for all of our grain and substrate products.
Storage
Storage
Basics : Milo (Red Dari) Sterile Grain for Mushroom Grain Spawn
Video Instructions for inoculation
We made a nice little video ages ago which shows how to inoculate your grain bag.
Have questions about your sterile grain?
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Great spawn, easy to use.
One of the two bags I bought ended up contaminated after leaving it in the packaging for a couple months. Would have expected they'd be sterile for a long time if left untouched
Hi Ben,
The reason we put stickers on the parcels telling you to remove from the packaging is because condensation builds up on the filter and allows contamination to bridge through into the bag. Whilst we would expect them to stay sterile out of the packaging the grain will dry substationally over time and quality will decrease.
All the best,
Chris
Excellent and fast delivery
great stuff
Working very well for jar spawn, not made sterile before and needing some quickly so I got this stuff
Good quality, fast delivery, very happy
Awesome
Fantastic grain every time.
Fast turn around.
Love the free stuff, agar & stickers etc.
Worked perfectly, very happy with it.
I didnt enjoy them but the spores seemed to love it
Super fast colonization and no contamination. Great stuff!
Amazing company & great products!
So far so good. Doing what it says on the tin paired up with Lions Mane spores.
Ended up getting mould before I could use but messaged the team and they offered to sort me a new one as soon as they possibly could or store credit appreciate everything these guys do
Excellent quality sterile grain, easy to inject and impressive colonisation time.
Well packaged, quick turnaround from order and completely priced.
Reliable and sterile products that work flawlessly every time. A pleasure to buy from this awesome shop!
Was contaminated before i used it. Holes in the folds of the bottom unfortunately 4 out 5 bags were like it.
I've been using these for years, never had any problems.
Very good
I have never had any problems colonizing this product also I love the service the punks give u
Best grain around, I never get mine from anywhere else!
Very good
Great product. I'm still quite a beginner but I was surprised how quickly I reached full colonisation from spore syringe. Very quick shipping. Seem like a cool bunch and love the product descriptions.
Worked nicely for me the last time I bought it. I had an 800g crop from it.
Looking forward to the same again!
Outstanding product
Had all grain contaminated because the seal in the bottom of the bags had holes or was split unfortunately
Opened the package and honestly — felt like a little gift, not just a bag of grains. Loved the stickers (instant mood boost) and the whole packaging idea.
The grains themselves? Clean, well-prepared, and exactly what you want — no weird surprises, no shortcuts.
Great product, great presentation, and just enough personality to make you smile while getting the job done.
Up to now everything as it should be,,
Super clean sterile products that work every time.