---
product_id: 255683627
title: "Reinforced Mushroom Grow Bags, 25 Count, Oyster Spawn and Grain Root Substrate Growing Kit with 0.2 Micron Filter, Large 8” x 5” x 20”, Thickest Available Heavy Duty 3 Mil Polypropylene Plastic"
brand: "the magnificent bee"
price: "€ 77.77"
currency: EUR
in_stock: true
reviews_count: 5
category: "The Magnificent Bee"
url: https://www.desertcart.hr/products/255683627-reinforced-mushroom-grow-bags-25-count-oyster-spawn-and-grain
store_origin: HR
region: Croatia
---

# 25 bags 0.2 micron filter 8" x 5" x 20" Reinforced Mushroom Grow Bags, 25 Count, Oyster Spawn and Grain Root Substrate Growing Kit with 0.2 Micron Filter, Large 8” x 5” x 20”, Thickest Available Heavy Duty 3 Mil Polypropylene Plastic

**Brand:** the magnificent bee
**Price:** € 77.77
**Availability:** ✅ In Stock

## Summary

> 🌱 Cultivate Your Fungi Fantasy!

## Quick Answers

- **What is this?** Reinforced Mushroom Grow Bags, 25 Count, Oyster Spawn and Grain Root Substrate Growing Kit with 0.2 Micron Filter, Large 8” x 5” x 20”, Thickest Available Heavy Duty 3 Mil Polypropylene Plastic by the magnificent bee
- **How much does it cost?** € 77.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/255683627-reinforced-mushroom-grow-bags-25-count-oyster-spawn-and-grain)

## Best For

- the magnificent bee enthusiasts

## Why This Product

- Trusted the magnificent bee brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Usage:** Perfect for a variety of mushrooms, from oyster to portabella, and autoclavable for convenience.
- • **Optimal Aeration:** Experience superior gas exchange with our innovative 0.2 micron filter patch.
- • **Heavy-Duty Design:** Crafted from the thickest 3 mil polypropylene for durability and moisture retention.
- • **Sealable for Success:** Easily seal in moisture and protect your growth with a quick tie or impulse sealer.
- • **Grow Your Own Gourmet:** Transform your backyard into a mushroom haven with our all-purpose grow bags!

## Overview

The Reinforced Mushroom Grow Bags come in a pack of 25, designed for optimal mushroom cultivation. Each bag measures 8" x 5" x 20" and features a 0.2 micron filter for superior gas exchange. Made from heavy-duty 3 mil polypropylene, these bags are autoclavable and perfect for growing various mushroom types, ensuring a successful homegrown garden.

## Description

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

Review: Price keeps going up on these - Amazing bag . Bought 3 packages 25 bags per package. Each was 30$ Now I see the price has been raised to 40$
Review: Bomb proof grow BAGS(not kits) for worry free production. - There seems to be some confusion from a few of the reviewers that this is supposed to be a kit, and rated it poorly because they only received bags. The Title and description clearly state All in one grow bags, NOT a kit. If you actually read and pay attention to the listing and pictures, it's obvious that these are bags only. All in one is referring to the bags having a prepared filter port meaning they are ready to use without any additional alterations. Now with the confusion out of the way, on to the real review. The quality of the bags is much better than some of the other brands that I have tried. They are a little more expensive compared to some others at the $.998/ea cost that I paid, but I had zero failures in bag structure or performance and zero contamination. The 3 mil is very durable, seals easily and completely without leaking or tears when I use an impulse sealer. With this thickness they are easy to stand up and fill, I am never concerned or careful moving full bags around, or worrying about seams or punctures. I've even used a few of these bags more than once for grain spawn(something I had never even considered trying with other bags) just to see if I could, and they actually worked perfectly. The .2 micron filter patch has been perfect for contamination free fresh air exchange. Bottom line, if you are looking for a sturdy, well made reliable grow bag that can handle 5lbs (or more) of substrate this is an excellent choice. I will definitely be purchasing more in the future.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Colour | Transparent |
| Material | Polypropylene (PP) |
| Planter form | Bag |
| Shape | Rectangular |
| Special features | Reinforced |
| Style | Traditional |

## Product Details

- **Colour:** Transparent
- **Material:** Polypropylene (PP)
- **Planter form:** Bag
- **Special features:** Reinforced
- **Style:** Traditional

## Images

![Reinforced Mushroom Grow Bags, 25 Count, Oyster Spawn and Grain Root Substrate Growing Kit with 0.2 Micron Filter, Large 8” x 5” x 20”, Thickest Available Heavy Duty 3 Mil Polypropylene Plastic - Image 1](https://m.media-amazon.com/images/I/81HsdZP93PL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Why are all these rookies not capable of understanding that this product is for bags and not a grow kit?**
A: The description was misleading it says it’s a kit with the oyster mushrooms and growing medium. You need to change the description and you shouldn’t be hateful to legitimate customers.

**Q: How do you inoculate if there is no self healing port**
A: You install your own port with thermal(hi temp) silicone sealant or... don't seal the bags just use tyvek as filter and fold over a few times.

**Q: Do I need 8" or 12" impulse sealer to seal those bags?**
A: I use a 12" sealer. The bags are exactly 8", my concern was;  will i get a tight seal on the ends of the 8" sealer? I'm Still Not sure so i want big.

**Q: Is there a video on how to use these?**
A: Look on YouTube, that’s what I did

## Customer Reviews

### ⭐⭐⭐⭐⭐ Price keeps going up on these
*by D***N on 18 July 2021*

Amazing bag . Bought 3 packages 25 bags per package. Each was 30$ Now I see the price has been raised to 40$

### ⭐⭐⭐⭐⭐ Bomb proof grow BAGS(not kits) for worry free production.
*by J***S on 1 June 2020*

There seems to be some confusion from a few of the reviewers that this is supposed to be a kit, and rated it poorly because they only received bags. The Title and description clearly state All in one grow bags, NOT a kit. If you actually read and pay attention to the listing and pictures, it's obvious that these are bags only. All in one is referring to the bags having a prepared filter port meaning they are ready to use without any additional alterations. Now with the confusion out of the way, on to the real review. The quality of the bags is much better than some of the other brands that I have tried. They are a little more expensive compared to some others at the $.998/ea cost that I paid, but I had zero failures in bag structure or performance and zero contamination. The 3 mil is very durable, seals easily and completely without leaking or tears when I use an impulse sealer. With this thickness they are easy to stand up and fill, I am never concerned or careful moving full bags around, or worrying about seams or punctures. I've even used a few of these bags more than once for grain spawn(something I had never even considered trying with other bags) just to see if I could, and they actually worked perfectly. The .2 micron filter patch has been perfect for contamination free fresh air exchange. Bottom line, if you are looking for a sturdy, well made reliable grow bag that can handle 5lbs (or more) of substrate this is an excellent choice. I will definitely be purchasing more in the future.

### ⭐⭐⭐⭐⭐ Ecellent quality!
*by G***S on 26 September 2021*

Excellent quality. Though, reading the packaging packet, Made in China, means it was sent to the U.S.A. and then sent to the U.K. Not really helping the planet! Happy with the product but not happy with my choice after finding that out on receipt of it.

## Frequently Bought Together

- The Magnificent Bee Reinforced Mushroom Grow Bags, 25 Count, Oyster Spawn and Grain Root Substrate Growing Kit with 0.2 Micron Filter”, Heavy Duty 3 Mil Polypropylene Plastic
- MushroomMediaOnline - 100% Soy Hull Mushroom Pellets - Ideal and Fast-Growing Substrate for Mushroom Cultivation, Oyster Mushrooms, Shiitake, and More (10, Pounds)

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**Shop now:** [https://www.desertcart.hr/products/255683627-reinforced-mushroom-grow-bags-25-count-oyster-spawn-and-grain](https://www.desertcart.hr/products/255683627-reinforced-mushroom-grow-bags-25-count-oyster-spawn-and-grain)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-10*