---
product_id: 712419027
title: "3lb Organic Hydrated Sterilized Grain Bag w/Self-Healing Injection Port | Sterile Mushroom Spawn Bag w/ 0.2 Micron Filter Patch | USDA Certified Organic"
brand: "north spore"
price: "575.75 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "North Spore"
url: https://www.desertcart.tn/products/712419027-3lb-organic-hydrated-sterilized-grain-bag-w-self-healing-injection
store_origin: TN
region: Tunisia
---

# 3lb organic millet & wheat blend 50% optimal moisture content 0.2 micron sterile filter patch 3lb Organic Hydrated Sterilized Grain Bag w/Self-Healing Injection Port | Sterile Mushroom Spawn Bag w/ 0.2 Micron Filter Patch | USDA Certified Organic

**Brand:** north spore
**Price:** 575.75 DT
**Availability:** ✅ In Stock

## Summary

> 🍄 Elevate your mushroom game with sterile precision and organic power!

## Quick Answers

- **What is this?** 3lb Organic Hydrated Sterilized Grain Bag w/Self-Healing Injection Port | Sterile Mushroom Spawn Bag w/ 0.2 Micron Filter Patch | USDA Certified Organic by north spore
- **How much does it cost?** 575.75 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/712419027-3lb-organic-hydrated-sterilized-grain-bag-w-self-healing-injection)

## Best For

- north spore enthusiasts

## Why This Product

- Trusted north spore brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Hydration at 50%:** Optimized moisture level ensures rapid and healthy colonization every time.
- • **Self-Healing Injection Port:** Inject spores confidently with a sterile, contamination-blocking gateway.
- • **Commercial-Grade Sterilization:** Autoclaved and verified sterile for a contamination-free mushroom spawn experience.
- • **Ready-to-Use & Long Shelf Life:** Store at room temp, no refrigeration needed—grow on your schedule without compromise.
- • **Proprietary Organic Grain Blend:** Harness the power of nutrient-rich millet and wheat berries for robust mycelium growth.

## Overview

North Spore’s 3lb Organic Hydrated Sterilized Grain Bag features a USDA certified organic millet and wheat blend, hydrated to an optimal 50% moisture level. Equipped with a self-healing injection port and a 0.2 micron filter patch, it ensures sterile inoculation and gas exchange. Commercially autoclaved for guaranteed sterility, this spawn bag supports fast, contamination-free mycelium colonization and is designed for easy storage without refrigeration.

## Description

Our premium organic sterilized grain bag was formulated by mycologists to maximize the speed and size of your mushroom grow. Each spawn bag contains our proprietary blend featuring hydrated, nutrient-rich organic millet and wheat berries. Bags also include a self-healing injection port for use with a spore or culture syringe plus a 0.2 micron filter patch to block airborne contaminants while providing even gas exchange. (Note: Color of injection port may vary.) MIXING WITH SUBSTRATE We recommended 1 lb of colonized grain spawn for every 5 lb of manure or hardwood substrate. INOCULATION To inoculate the grain bag, simply inject your spore or culture syringe through the port in a sterile location. We always recommend clean hands and latex gloves to reduce the introduction of contaminants. (It is best practice to wait a minimum of 1 week after arrival before injecting grain bags to ensure they were not compromised during transit.) COLONIZATION Allow your bag to colonize in a cool location out of direct sunlight. The temperature for incubation shouldn't exceed 75 degrees F or dip below 55 degrees F. After a couple of weeks, you should start to see mycelium growing on the grain. You'll notice the white mycelium growing outward from the injection point. When it has grown three to four inches you should, without opening the bag, carefully break up the colonized grain and mix it into the uncolonized grain. This will dramatically speed up the colonization process. When the bag is completely white with mycelium your spawn is ready to use. This may take a couple of weeks to a month or more depending on the species and vigor of your culture. STORING Grain bags should be stored at room temperature out of direct sunlight. No refrigeration is necessary. They can also be stored for several months before use. STERILIZATION Our grain spawn bags are sterilized in a commercial-grade autoclave. Sterility is verified using biological indicators and temperature sensors.

Review: piece of mind with this product - seems to be working great. I tried to make my own at home but couldn't get it right. much easier to buy from these guys and know that it will work with no problems. mushrooms colonized great. good value for the money and even the appearance of the bag and shipping box shows care.
Review: Excellent - The only grain I will buy. Nice and tightly packed with fresh hydrated and sterile millet. I inoculated it with a spore syringe from a reputable supplier. Set the temp to 77, and let it sit in the dark cozy closet. I was careful to minimize possibility of contam. Sprayed the bag all over w alcohol first thing. Applied fire to the syringe. Sprayed the grow room w isopropyl alcohol too. You cant do too much sterilizing. Use sterile gloves if you have them. Mycelium noticeable in a week. Spreads rapidly. After the second week, I had about 2 pounds of pure, fresh fluffy mycelium. Went on to grow the biggest flush ever in a monotub. Happy growing!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | North Spore |
| Global Trade Identification Number | 00869275000289 |
| Item form | Granules |
| Item weight | 3 Pounds |
| Liquid volume | 3 Liters |
| Specific uses for product | Mushroom cultivation |

## Product Details

- **Brand:** North Spore
- **Item form:** Granules
- **Item weight:** 1.36 kg
- **Liquid volume:** 3 Liters
- **Specific uses for product:** Mushroom cultivation

## Images

![3lb Organic Hydrated Sterilized Grain Bag w/Self-Healing Injection Port | Sterile Mushroom Spawn Bag w/ 0.2 Micron Filter Patch | USDA Certified Organic - Image 1](https://m.media-amazon.com/images/I/81xRdZjXyuL.jpg)

## Questions & Answers

**Q: does this come with spores?**
A: No it does not.

## Customer Reviews

### ⭐⭐⭐⭐⭐ piece of mind with this product
*by T***H on 14 May 2026*

seems to be working great. I tried to make my own at home but couldn't get it right. much easier to buy from these guys and know that it will work with no problems. mushrooms colonized great. good value for the money and even the appearance of the bag and shipping box shows care.

### ⭐⭐⭐⭐⭐ Excellent
*by T***E on 15 March 2025*

The only grain I will buy. Nice and tightly packed with fresh hydrated and sterile millet. I inoculated it with a spore syringe from a reputable supplier. Set the temp to 77, and let it sit in the dark cozy closet. I was careful to minimize possibility of contam. Sprayed the bag all over w alcohol first thing. Applied fire to the syringe. Sprayed the grow room w isopropyl alcohol too. You cant do too much sterilizing. Use sterile gloves if you have them. Mycelium noticeable in a week. Spreads rapidly. After the second week, I had about 2 pounds of pure, fresh fluffy mycelium. Went on to grow the biggest flush ever in a monotub. Happy growing!

### ⭐⭐⭐⭐⭐ I trust North Spore. Plain and simple.
*by C***W on 31 July 2025*

Haven't had a problem with a bag yet! I've been able to colonize and spawn to bulk with every single one. I will say this, North Spore is a brand i trust. There's plenty of other bigger and cheaper grain bags on here..but I know this works, it's clean, and if there is ever a problem, North Spore will take care of it. Not if you inoculated and nothing grew...im talking about if the grains don't look right, the bag isnt vacuum sealed, or it smells bad. Quality is 10/10. It does its magic thing every single time :)

## Frequently Bought Together

- North Spore Organic Sterilized Hydrated Grain Bag w/Self-Healing Injection Port | Sterile Mushroom Spawn Bags w/ 0.2 Micron Filter Patch | USDA Certified Organic (1 Pack)
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-10*