---
product_id: 607306237
title: "Premium 5-Grain Mushroom Spawn Bags | Sterilized Grain Spawn | Injection Ports | 2 Quarts Each Bag | 2 Bags per Box"
brand: "myco labs"
price: "¥14502"
currency: JPY
in_stock: true
reviews_count: 8
category: "Myco Labs"
url: https://www.desertcart.jp/products/607306237-premium-5-grain-mushroom-spawn-bags-sterilized-grain-spawn-injection
store_origin: JP
region: Japan
---

# 2 Quarts per bag, 2 bags per box 3-hour pressure sterilized grain spawn Unique 3-mineral blend for optimal growth Premium 5-Grain Mushroom Spawn Bags | Sterilized Grain Spawn | Injection Ports | 2 Quarts Each Bag | 2 Bags per Box

**Brand:** myco labs
**Price:** ¥14502
**Availability:** ✅ In Stock

## Summary

> 🍄 Elevate your grow game with spawn bags that mean serious business!

## Quick Answers

- **What is this?** Premium 5-Grain Mushroom Spawn Bags | Sterilized Grain Spawn | Injection Ports | 2 Quarts Each Bag | 2 Bags per Box by myco labs
- **How much does it cost?** ¥14502 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/607306237-premium-5-grain-mushroom-spawn-bags-sterilized-grain-spawn-injection)

## Best For

- myco labs enthusiasts

## Why This Product

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

## Key Features

- • **Dual 2-Quart Bags:** Generous 4 quarts total for robust mushroom cultivation
- • **Sterilized for Purity:** Pressure sterilized 3 hours to eliminate contaminants and boost success rates
- • **Expert Support & Guides:** Step-by-step photo and bulk spawn guides plus live expert advice ensure your mycology journey thrives
- • **Mineral-Enhanced Growth:** Exclusive 3-mineral blend prevents clumping and accelerates mycelium colonization
- • **User-Friendly Injection Ports:** Self-healing ports simplify inoculation with spores or liquid culture

## Overview

Myco Labs Premium 5-Grain Mushroom Spawn Bags deliver 4 quarts of sterilized, mineral-enhanced grain spawn in durable polypropylene bags with injection ports. Designed for professional and hobbyist cultivators alike, these bags ensure rapid, contamination-resistant mycelium growth supported by comprehensive guides and expert customer support.

## Description

Buy Myco Labs Premium 5-Grain Mushroom Spawn Bags | Sterilized Grain Spawn | Injection Ports | 2 Quarts Each Bag | 2 Bags per Box: Mushrooms - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Best grow bags on the market at a great price! 5 grain is the way to go! - Myco labs has it all! Decontaminated my bags, spore syringe, monotube (also from myco labs ) an old tote to keep them in the dark and and a old grow tent tarp that went over a 4 tier shelve with 75 percent isopropal alcohol as usual and commonplace. The spores were fresh but I've had little luck with them before they have either grown yeast and never fully colonized or molded. Well less than a week in I strapped on some disposable gloves sprayed em down and went to check the bags and try and get some good ol' oxygen inside sense they were 3 layers deep and I thought it was a bit much. Then i saw it! Mycelium growth in less than a week from spores! No freaking way! Then to boot they included a card with a number for questions and answered all my inquires with clear and concise answers which really boosted my moral! To have experts giving me support meant my mycology journey was no longer a solo endeavor but one with mentors! I've read that the percentage of spores growing can be low and contamination high but there it was small but healthy! Sense then myco labs has continued to support me in my education in mycology and I've stepped up my game with the mind set that I will succeed! No matter how many times it takes to find that perfect groove I won't give up! Sense then I've talked with Myco labs again checked out there websites and after getting a healthy culture that's in my fridge chillin' I've choosen, with Jeff from Myco labs help, some grain jars and substrate. Soon I hope to see plenty more growth and one day after much research, hard work and money spent fresh mushrooms! I've been disappointed before but this time I'm delighted! I think this is the future! So anyone who's having doubts you must remember that contamination cannot be completely controlled and for now we must carry on our pursuit of knowledge but today we have a company that truly can be trusted in to have our backs! To me that's priceless because they have generously given knowledge that took a lifetime of trial and error to gain and that's something you can put in the bank. Bags my go bad but knowledge and wisdom continue to grow even if the mycelium in one bag does not but so far everything looks way better than expected. I'll upload some pictures when I decontaminate myself and everything to be safe and let them breathe some more. Myco labs thanks! I couldn't have come this far without all the help. It's awesome to know there's people in my corner. I don't know what else anyone could ask for really. Thanks again and good luck to everyone on there journey! Hope to have some great pictures later! So if your still on the fence these bags are easy to use with self healing ports. They come with video instructions as well as live advice from experts. They perform better than advertised and the sturdy bags keep from accidental tears and contamination. Truly awesomeness in a bag! Update, two weeks in and you can see the mycelium is coming along nicely in the monotub and almost ready to break and shake. Everything is coming along better than expected. The latches on the side's of the monotub really make an airtight seal. They are fully detachable making sterilizing simple in a place that would be a trouble area. Mycology is amazing! Update 3 and 4 Both bags colonized completely! Inside the montotub they did great. I used two 28 quart monotubs from Myco. Between Myco labs and Midwestern its been smooth sailing. Iayered the grain spawn with a bag of bulk substrate that was about 4 pounds i think from Midwestern. The same people who I got these grow bags and monotubs from. The first tub looks to be about fully colonized and im expecting pins any time now! The advice I got from the phone line with the products really helped. After seeing so many videos and doing so much research talking to a real person with experience just felt right and I gotta say I have no complaints! The mycelium smelled fresh almost a scent like spearmint gum. I put on more pictures and i hope my video loads. Its a bit long. If not ill make another. as well as get a few pics inside the monotube now its that its almost ready to pin. I used a UVC light to help sterilize everything and there perfectly safe just don't forget your sunglasses. Well, this was definitely the way to go!! Certainly satisfied with the money. Mycology has gone from a wish to reality thanks to Myco labs and Midwestern. Thanks again guys. Any questions please feel free to ask. Sorry so sorry for the delay in my review. I used two of Myco labs small monotubs for each fully colognized grain bag. They each wieghed 2 5 pounds I used a bag of Mycos 5 pound substrate. A thicker bottom with 3 layers of grain spawn that, once opened had a fresh smell simular to spear mint. Sense I've started my next batch in another set of Mycos monotubs and the grain spawn also had a hint of fresh spear mint. I put a thicker top layer of substrate than the ones in-between the grain spawn. I immediately put the monotubs back in my tote and plunged it into darkness...seemed at the time I never would observe mycology.... would I ever even see a single mushroom?? I pondered. The sterilization and mixing..the making of a complete monotubs ready to colonize was a long process including the hour to jet the air sit still it was a 2 and half hour process. So I waited in the next one. Letting my first attempt process in my mind and in growth... After a week I pulled the monotub up to see the top all in white except two patches..a week or two later little knobs appeared..that I soon discovered to be pins!! Out of the dark my monotub raised! Still here in view as I write this. Amazingly through all the waiting... those pins took off! Quickly growing into a thick canopy of mushrooms...the excitement of seeing it happening for the first time well...I hope you too can experience this for yourself. If you are wanting to grow mushrooms look to Myco otr Midwestern labs. There products there live advice....I remember talking to Merrisa about picking my first flush and finding a dehydratior. She easily gave me the correct temperature and length of time to get them ready for storage sense there were way to many to have at once. Now I have a whole new world open to me. New cultures came in..Agar plates...spore prints... making substrate and my own grain spawn...they had a answers and even made a YouTube video about my question! So if your wondering...is this the right thing to buy? Yes! Yes it is. I'm very proud to post these pics of my first successful harvest! Thanks Midwestern and good luck to all of you one day mycologists. These people are here to see you succeed. If not just the product the support is priceless!
Review: Success Again! - These are reliable bags. I've had no issues with them every time I buy. I like the 5 grain bags. I don't know if there really is a difference, but I stick with what works. The bags always have a good moisture content and the bags are sturdy for when it comes time to break and shake the partially colonized grain. You get two bags in the order so that's a good price. It can't get any easier if you're going with grain bags. You just make the inoculations using Liquid Culture and put them in a dark place for a month or so. Check on them often for curiosity sake, and see if they're looking good. That's easy enough!

## Features

- 2 Quarts (2.25-2.5lbs) of Grain Spawn in Each Bag (2 Bags Total)
- Pressure Sterilized for 3 hours using cleaned organic cereal grains to eliminate residues and starches.
- Unique 3 Mineral blend added to promote germination and growth while preventing grains from sticking together
- Simply add 5 cc's of your favorite grain or dung loving spores or liquid culture. Our Spawn bags come with their own step by step photo guide. We also include a separate step by step guide for on bulk spawn growing, which we highly recommend!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CTXLMGT7 |
| Best Sellers Rank | #40,485 in Health & Household ( See Top 100 in Health & Household ) #215 in Mushrooms Herbal Supplements |
| Brand | Myco Labs |
| Capacity | 2 Quarts |
| Color | Clear |
| Customer Reviews | 4.0 4.0 out of 5 stars (457) |
| Date First Available | February 3, 2024 |
| Finish Type | Unfinished |
| Global Trade Identification Number | 00850058190105 |
| Included Components | 5 x Grain Bags, Instruction manual |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 5 pounds |
| Manufacturer | Myco Labs |
| Material | Polypropylene (PP) |
| Mounting Type | Tabletop |
| Number of Levels | 1 |
| Number of Pieces | 2 |
| Planter Form | Bag |
| Product Dimensions | 5"D x 7"W x 6"H |
| Shape | Rectangular |
| Special Feature | Breathable, Injection Port |
| Style | American |

## Product Details

- **Color:** Clear
- **Material:** Polypropylene (PP)
- **Planter Form:** Bag
- **Special Feature:** Breathable, Injection Port
- **Style:** American

## Images

![Premium 5-Grain Mushroom Spawn Bags | Sterilized Grain Spawn | Injection Ports | 2 Quarts Each Bag | 2 Bags per Box - Image 1](https://m.media-amazon.com/images/I/71r-T3HC+pL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best grow bags on the market at a great price! 5 grain is the way to go!
*by W***L on August 18, 2024*

Myco labs has it all! Decontaminated my bags, spore syringe, monotube (also from myco labs ) an old tote to keep them in the dark and and a old grow tent tarp that went over a 4 tier shelve with 75 percent isopropal alcohol as usual and commonplace. The spores were fresh but I've had little luck with them before they have either grown yeast and never fully colonized or molded. Well less than a week in I strapped on some disposable gloves sprayed em down and went to check the bags and try and get some good ol' oxygen inside sense they were 3 layers deep and I thought it was a bit much. Then i saw it! Mycelium growth in less than a week from spores! No freaking way! Then to boot they included a card with a number for questions and answered all my inquires with clear and concise answers which really boosted my moral! To have experts giving me support meant my mycology journey was no longer a solo endeavor but one with mentors! I've read that the percentage of spores growing can be low and contamination high but there it was small but healthy! Sense then myco labs has continued to support me in my education in mycology and I've stepped up my game with the mind set that I will succeed! No matter how many times it takes to find that perfect groove I won't give up! Sense then I've talked with Myco labs again checked out there websites and after getting a healthy culture that's in my fridge chillin' I've choosen, with Jeff from Myco labs help, some grain jars and substrate. Soon I hope to see plenty more growth and one day after much research, hard work and money spent fresh mushrooms! I've been disappointed before but this time I'm delighted! I think this is the future! So anyone who's having doubts you must remember that contamination cannot be completely controlled and for now we must carry on our pursuit of knowledge but today we have a company that truly can be trusted in to have our backs! To me that's priceless because they have generously given knowledge that took a lifetime of trial and error to gain and that's something you can put in the bank. Bags my go bad but knowledge and wisdom continue to grow even if the mycelium in one bag does not but so far everything looks way better than expected. I'll upload some pictures when I decontaminate myself and everything to be safe and let them breathe some more. Myco labs thanks! I couldn't have come this far without all the help. It's awesome to know there's people in my corner. I don't know what else anyone could ask for really. Thanks again and good luck to everyone on there journey! Hope to have some great pictures later! So if your still on the fence these bags are easy to use with self healing ports. They come with video instructions as well as live advice from experts. They perform better than advertised and the sturdy bags keep from accidental tears and contamination. Truly awesomeness in a bag! Update, two weeks in and you can see the mycelium is coming along nicely in the monotub and almost ready to break and shake. Everything is coming along better than expected. The latches on the side's of the monotub really make an airtight seal. They are fully detachable making sterilizing simple in a place that would be a trouble area. Mycology is amazing! Update 3 and 4 Both bags colonized completely! Inside the montotub they did great. I used two 28 quart monotubs from Myco. Between Myco labs and Midwestern its been smooth sailing. Iayered the grain spawn with a bag of bulk substrate that was about 4 pounds i think from Midwestern. The same people who I got these grow bags and monotubs from. The first tub looks to be about fully colonized and im expecting pins any time now! The advice I got from the phone line with the products really helped. After seeing so many videos and doing so much research talking to a real person with experience just felt right and I gotta say I have no complaints! The mycelium smelled fresh almost a scent like spearmint gum. I put on more pictures and i hope my video loads. Its a bit long. If not ill make another. as well as get a few pics inside the monotube now its that its almost ready to pin. I used a UVC light to help sterilize everything and there perfectly safe just don't forget your sunglasses. Well, this was definitely the way to go!! Certainly satisfied with the money. Mycology has gone from a wish to reality thanks to Myco labs and Midwestern. Thanks again guys. Any questions please feel free to ask. Sorry so sorry for the delay in my review. I used two of Myco labs small monotubs for each fully colognized grain bag. They each wieghed 2 5 pounds I used a bag of Mycos 5 pound substrate. A thicker bottom with 3 layers of grain spawn that, once opened had a fresh smell simular to spear mint. Sense I've started my next batch in another set of Mycos monotubs and the grain spawn also had a hint of fresh spear mint. I put a thicker top layer of substrate than the ones in-between the grain spawn. I immediately put the monotubs back in my tote and plunged it into darkness...seemed at the time I never would observe mycology.... would I ever even see a single mushroom?? I pondered. The sterilization and mixing..the making of a complete monotubs ready to colonize was a long process including the hour to jet the air sit still it was a 2 and half hour process. So I waited in the next one. Letting my first attempt process in my mind and in growth... After a week I pulled the monotub up to see the top all in white except two patches..a week or two later little knobs appeared..that I soon discovered to be pins!! Out of the dark my monotub raised! Still here in view as I write this. Amazingly through all the waiting... those pins took off! Quickly growing into a thick canopy of mushrooms...the excitement of seeing it happening for the first time well...I hope you too can experience this for yourself. If you are wanting to grow mushrooms look to Myco otr Midwestern labs. There products there live advice....I remember talking to Merrisa about picking my first flush and finding a dehydratior. She easily gave me the correct temperature and length of time to get them ready for storage sense there were way to many to have at once. Now I have a whole new world open to me. New cultures came in..Agar plates...spore prints... making substrate and my own grain spawn...they had a answers and even made a YouTube video about my question! So if your wondering...is this the right thing to buy? Yes! Yes it is. I'm very proud to post these pics of my first successful harvest! Thanks Midwestern and good luck to all of you one day mycologists. These people are here to see you succeed. If not just the product the support is priceless!

### ⭐⭐⭐⭐⭐ Success Again!
*by B***E on July 31, 2024*

These are reliable bags. I've had no issues with them every time I buy. I like the 5 grain bags. I don't know if there really is a difference, but I stick with what works. The bags always have a good moisture content and the bags are sturdy for when it comes time to break and shake the partially colonized grain. You get two bags in the order so that's a good price. It can't get any easier if you're going with grain bags. You just make the inoculations using Liquid Culture and put them in a dark place for a month or so. Check on them often for curiosity sake, and see if they're looking good. That's easy enough!

### ⭐ Bad batch?
*by N***L on August 21, 2025*

Maybe I received a bad batch. I used one of the two bags with an isolated spore syringe, right from the start the bag seemed to be wet on the bottom and I could smell the grain. The colonization rate was incredibly slow and the inside of the bag seemed to get progressively wetter. A small chunk of grain on the top of the bag colonized then it stopped. I emailed customer service to ask about the moisture in the bag and they assured me it was normal and to give it time. After a couple weeks, no progress, bottom of bag was almost goopy. With nothing to lose I did a break and shake, gave it another week, it started to stink. Waste of time and spores. Won’t be using the second bag. Bummer, beyond the refund timeframe.

## Frequently Bought Together

- Myco Labs Premium 5-Grain Mushroom Spawn Bags | Sterilized Grain Spawn | Injection Ports | 2 Quarts Each Bag | 2 Bags per Box
- Myco Labs Premium Bulk Mushroom Substrate Mix | Fully Pastuerized | Maximum Yield | for Dung & Grain Loving Mushrooms (5 LBS)
- Myco Labs Grower's Select Mushroom Monotub Fruiting Chamber with Filter Disks and Liner

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*