---
product_id: 529163118
title: "Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb"
brand: "pacific substrates"
price: "307.61 DT"
currency: TND
in_stock: true
reviews_count: 7
url: https://www.desertcart.tn/products/529163118-sterilized-grain-mushroom-grow-bags-goonie-grain-mushroom-spawn-grain
store_origin: TN
region: Tunisia
---

# 4lb capacity 0.2 micron filter Self-healing port Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb

**Brand:** pacific substrates
**Price:** 307.61 DT
**Availability:** ✅ In Stock

## Summary

> 🌱 Grow Your Fungi Empire with Confidence!

## Quick Answers

- **What is this?** Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb by pacific substrates
- **How much does it cost?** 307.61 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/529163118-sterilized-grain-mushroom-grow-bags-goonie-grain-mushroom-spawn-grain)

## Best For

- pacific substrates enthusiasts

## Why This Product

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

## Key Features

- • **Secure Inoculation:** Self-healing injection port ensures a tight seal for optimal inoculation.
- • **Warranty Assurance:** Comprehensive warranty coverage for peace of mind during your cultivation journey.
- • **User-Friendly Design:** Ideal for both intermediate and experienced growers, removing the guesswork.
- • **Cultivation Made Easy:** Pre-hydrated and ready for immediate use, saving you time and effort.
- • **Versatile Mushroom Growth:** Perfect for a variety of mushrooms including Lion's Mane, Shiitake, and more.

## Overview

Goonie Grain Mushroom Grow Bags are premium sterilized grain bags designed for mushroom cultivation. Each bag features a 0.2 micron filter and a self-healing injection port, making it easy for both intermediate and experienced growers to cultivate a variety of mushrooms. With a 4lb capacity and a user-friendly design, these bags are pre-hydrated and ready to use, ensuring robust mycelium growth while providing warranty coverage for defects.

## Description

Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb

## Features

- Premium Spawn Blend: Goonie Grains Premium Sterilized Grain is expertly crafted from whole oats, milo, gypsum, and lime. Tailored to maximize inoculation points, it caters to intermediate to experienced growers, ensuring robust mycelium growth. Pre-hydrated and ready for use, Goonie Grains saves you time and effort in your cultivation journey.
- Ideal for Nourishing a Variety of Mushrooms: Whether you're cultivating Lion's Mane, Oyster, Shiitake, Reishi, Medicinal Mushrooms, or a diverse range of species, our substrate is expertly formulated to deliver the nourishment your mycelium craves!
- Effortless Mushroom Cultivation: Our user-friendly Made in USA Sterilized Grain removes the guesswork whether you're an intermediate-level cultivator or an experienced grower. Intended for use with Pacific Substrates Paddy Poo at a 1:2 spawn-to-substrate ratio, Goonie Grains is the ideal grain spawn for growing specialty mushroom varieties in bags, tubs, or beds.
- Self-Healing Injection Port: Optimize your inoculation process with our bag's integrated self-healing injection port. This ensures a secure seal during liquid culture syringe injection. Simply attach your liquid culture syringe to the injection port, and the self-healing material ensures a tight seal.
- How to Use: Inject 10-20 ml of mushroom liquid culture into sterile grain spawn, seal, shake for even distribution, and incubate until fully colonized. Transfer colonized spawn to Paddy Poo substrate bags, shape for optimal fruiting, and incubate until fully colonized. Cut the bag top for frui initiation, maintaining conditions until mushrooms mature for harvesting.
- 🛡️ Warranty Coverage: Our warranty covers defects in materials, including holes, rips, stresses, or defects on the bag itself, as well as any discoloration or abnormalities on the dirt/grain inside the bag, before inoculation. Puncturing the bag voids the warranty.

## Images

![Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb - Image 1](https://m.media-amazon.com/images/I/71frvDrba2L.jpg)
![Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb - Image 2](https://m.media-amazon.com/images/I/71a1tMUZV+L.jpg)
![Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb - Image 3](https://m.media-amazon.com/images/I/71dpOYWu+2L.jpg)
![Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb - Image 4](https://m.media-amazon.com/images/I/81Y3Ifgd15L.jpg)
![Sterilized Grain Mushroom Grow Bags, Goonie Grain Mushroom Spawn Grain Bag with Injection Port, 0.2 Micron Filter - 4lb - Image 5](https://m.media-amazon.com/images/I/81ZYe749fLL.jpg)

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    Poor quality
  

*by D***K on Reviewed in the United States on May 19, 2024*

Extremely loose, not compacted like most. With this much air and everything that loose it’s harder for spores to fuse together. There are better brands out there.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Good most of the time
  

*by S***O on Reviewed in the United States on April 23, 2024*

I’ve been doing mycology for a few years. I got two of these and both were inoculated. One took of quick and other took a while but did fully colonize. Purchased two more and one had contamination which is upsetting but the other one was good. I know the one contaminated was not myself inoculating as I never have issues. I had products that were contaminated before and no good so I give a 4 star as so like their products and not as others say that always contaminated.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    We shall see…
  

*by C***Y on Reviewed in the United States on January 19, 2024*

Received 4 X 4 lb bags of the Goonie Grains. 2 of them were tightly folded, the other two seemed a bit loose with grain moving around in the bag. It has a micro filter so I just packed the grain tightly ant the bottom of the bag and rolled the air out of them. Not sure if there is a moisture issues as of yet, looks ok. Inoculated the grain within an hour of receiving the package (1/17), will update in a few weeks as to whether the spawn enjoyed the Goonie Grains.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/529163118-sterilized-grain-mushroom-grow-bags-goonie-grain-mushroom-spawn-grain](https://www.desertcart.tn/products/529163118-sterilized-grain-mushroom-grow-bags-goonie-grain-mushroom-spawn-grain)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-27*