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GALNUT 1 lb Sterilized Mushroom Grain Bag | Rye, Oats & Red Milo | Injection Port + Filter Patch | Gourmet Mushroom Spawn Supplies

Name: GALNUT 1 lb Sterilized Mushroom Grain Bag | Rye, Oats & Red Milo | Injection Port + Filter Patch | Gourmet Mushroom Spawn Supplies
Brand: Galnut
SKU: 1725105443
Price: 11.69 USD
Availability: InStock
Rating: 4.9 (164 reviews)

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Price:$11.69+

Original Price: $12.99+

10% off

•

Limited time sale

Galnut

Arrives soon! Get it by Oct 26-28 if you order today

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Star Seller. This seller consistently earned 5-star reviews, shipped on time, and replied quickly to any messages they received.

Highlights

Made by Galnut
Materials: Red Milo Sorghum, Organic, Local Sourced, Polypropylene, micron Filter, hydrophobic filter, injection port, sterilized grain, Oats

Start your gourmet mushroom spawn with the GALNUT™ 1 lb Sterilized Grain Bag. Our triple-grain blend of rye, oats, and red milo provides a nutrient-rich foundation for mycelium growth.

PRODUCT FEATURES
• 1 lb of hydrated, sterilized grain
• Triple-grain blend: rye, oats, and red milo
• Self-healing injection port for introducing mushroom culture
• Filter patch for gas exchange
• Prepared and ready for inoculation

HOW IT’S USED
Introduce your chosen gourmet mushroom culture through the injection port. Once the grain is fully colonized, use it to inoculate a separate bulk substrate appropriate for your mushroom species.

WHAT’S INCLUDED
One 1 lb Sterilized Triple-Grain Bag.

PLEASE NOTE
This is a grain-only bag, not an all-in-one grow bag. Mushroom culture and bulk substrate are sold separately. The bag is not pre-colonized. Listed weight refers to the prepared grain, not the expected mushroom harvest.

Order today to get by Oct 26-28
Returns & exchanges accepted within 30 days
Free shipping
Ships from: Grayslake, IL

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Michael

Owner of Galnut

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Reviews for this item

What buyers say, summarized by AI: Great quality Fast shipping Love it Helpful seller Well packaged Looks great As described

4.9

(164 reviews)

4.9 Item quality

4.9 Shipping

5.0 Customer service

100% Buyers recommend

5 This item

Josh Oct 20, 2026

Fast shipping, safely packaged and came with enough alcohol wipes to make sure everything is sterlie.

Josh Oct 20, 2026

5 This item

Kelly Oct 13, 2026

Amazing per usual. They even gave me a freebie 2lb grain bag!!! I ordered 15 1lb bags and got those plus a 2lb grain bag free!! Because they are the best and have the very best grains and substrate!! I won't stray from them, ever!! My only grain and substrate source!!!

Kelly Oct 13, 2026

Response from Michael

i only do that for my etsy customers. Last time I did that for an Amazon customer, (I upgraded one of their 1lb bags to a 2 lb bag) they thought all the 1 lb bags should have been the 2 lb size, and accused me of sending them half sized bags and returned the order 🫠🤣🤦😡🙃🤪