SKU: 63139692350

Grain Spawn

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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

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Description

Grain SpawnWhat is grain spawn? Grain spawn is a container of grain with living mycelium that has colonized each kernel of grain. The grains are simply seeds, usually the same seeds used in agriculture. We're not talking about common edible kernels like rice and corn here; we're talking about wheat, rye, millet, milo: the starchy substance that fills up the space inside these seeds is perfect food for mycelium. Grain spawn is usually pure white, but sometimes

What is grain spawn?

Grain spawn is a container of grain with living mycelium that has colonized each kernel of grain. The grains are simply seeds, usually the same seeds used in agriculture. We're not talking about common edible kernels like rice and corn here; we're talking about wheat, rye, millet, milo: the starchy substance that fills up the space inside these seeds is perfect food for mycelium.

Grain spawn is usually pure white, but sometimes pink, tan, grayish--it varies depending on the type of grain used and how fully it was colonized by the individual mushroom species and variety. Appearance could vary based on many factors.

When is grain spawn used?

Grain spawn is essential for growing mushrooms. The purpose of grain spawn is to act as a culture used to inoculate other substrates. This can be done by mixing into the substrate, otherwise known as inoculation.

  • 1st generation (G1) grain spawn can be used to inoculate other grain spawn, also known as G2 or 2nd generation grain spawn.
  • 2nd generation (G2) grain spawn should only be used to inoculate sawdust-based substrate materials.

Grain spawn will usually colonize any substrate within 7-14 days if used properly.

How long does grain spawn last?

Grain spawn should be used as quickly as possible. Storing in refrigerated conditions until use is ideal.

What's in the stuff?

We use a blend formulated to increase rapid mycelium growth in your substrate. The formula we use is a proprietary blend of locally produced wheat seeds with a 10% sawdust based supplement that varies slightly for each species of mushroom.

Why should I buy from Fungi Farm?

Professional cultivators depend on reliable service to keep their operations running smoothly. We want you to be confident this spawn will produce great results. We at Fungi Farm understand that nothing matters more than quality and we want you to be confident our spawn will produce great results. Our spawn is grown and produced by us, in our own facility, under the highest quality conditions. Every package also comes with insulated shipping!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 63139692350

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Karen Childs
Carnegie, US
★★★★★ 3
No instruction severely limit my use if can opener
Color: Black
There was no instructions on how to operate i couldnt even find the cord to plug it in let alone operate it I still havent used it and i dont have a car to drive me to the place where i return items or else i would of returned it by now already
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Reviewed in the United States on April 15, 2026
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Kim Cousins
Natrona Heights, US
★★★★★ 5
Quality and price
Color: Silver/Battery
Perfect. I love this item.
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Reviewed in the United States on February 9, 2026
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Amazon Customer
Lexington, US
★★★★★ 5
Great gadget
Color: Silver/Battery
Easy to use… I had a stroke and my right arm is not so there… this works great
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Reviewed in the United States on January 4, 2026
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ron
Battle Creek, US
★★★★★ 5
Safe to use
Color: Silver/Battery
Very quiet fits on all cans opens without any sharp edges
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Reviewed in the United States on January 27, 2026
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RUNR09
San Leandro, US
★★★★★ 1
Not worth it
Color: Silver/Battery
I had this for four months and now it just shreds the cans. I tried replacing the batteries and that did not help. It makes tiny peices of metal that you get stuck in your fingers. Wouldn’t recommend
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Reviewed in the United States on February 18, 2026

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