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Sterilized grain spawn Pasteurized CV Prime substrate Made for US growers
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The USA menu

The line-up

Sterilized grain spawn, pasteurized CV Prime substrate and matched kits, packed on the USA bench. Pick a weight on each card, then add it to your bag.

United States menu, prices in USD. Growing somewhere else? .

Everything on the US menu: sterilized milo grain spawn in filter-patch bags with a self-healing injection port, pasteurized CV Prime substrate (coco coir and vermiculite at field capacity) and matched grow kits. New to this? Start with what grain spawn is, the spawn to bulk guide or how to grow oyster mushrooms on CV.

Step 01 · choose your grainSTERILIZEDSterilized milo grain spawn bag, 3 lb

Grain spawn

$153 lb bag

Fully hydrated milo grain, pressure-sterilized and sealed in a 0.2 µm filter-patch bag with a self-healing injection port. Inoculate the moment it lands.

Weight
Grain
1
Step 02 · choose your substratePASTEURIZEDCV Prime coir and vermiculite substrate bag, 5 lb

CV Prime substrate

$34.995 lb bag

The original MushRealm ACS recipe, the exact blend ACS runs in every grow: coir and vermiculite, pasteurized and hydrated to field capacity. Mix in colonized spawn and fruit straight from the bag.

Weight
1
Step 03 · or grab the pairMATCHED PAIRGrow kit bundle, USA grow kit

Grow kit bundle

$44.99Single kit

One 3 lb grain spawn bag and one 5 lb CV Prime bag, matched for a single grow. No autoclave, no guesswork.

Size
1
$5.62 per lbFull details
By the lb

Compare the whole menu

Same bench, same prep, different sizes. Bigger bags and kits bring the price per lb down.

ProductContentsPricePer lb
Grain spawn · 3 lb3 lb grain$15
$5.00Best
Grow kit bundle · Double kit10 lb CV Prime + 6 lb grain$84
$5.25
Grain spawn · 5 lb5 lb grain$27
$5.40
Grow kit bundle · Single kit5 lb CV Prime + 3 lb grain$44.99
$5.62
CV Prime substrate · 10 lb10 lb CV Prime$59
$5.90
CV Prime substrate · 5 lb5 lb CV Prime$34.99
$7.00
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