---
product_id: 148907055
title: "Sterile Manure Substrate"
price: "S/.367"
currency: PEN
in_stock: true
url: https://www.desertcart.pe/products/148907055-sterile-manure-substrate
store_origin: PE
region: Peru
---

# 5 lb sterile manure-based substrate Optimized for max mushroom yield Mycologist-formulated & trusted Sterile Manure Substrate

**Price:** S/.367
**Availability:** ✅ In Stock

## Summary

> 🍄 Elevate your grow game with Boomr Bag – where science meets bountiful harvests!

## Quick Answers

- **What is this?** Sterile Manure Substrate
- **How much does it cost?** S/.367 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/148907055-sterile-manure-substrate)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Boost Your Harvest:** Sterile, manure-rich substrate engineered to maximize mushroom fruiting and size.
- • **Trusted by Experts:** Years of refinement and 1,200+ 4.2-star reviews prove its reliability and performance.
- • **Perfect Spawn Ratio:** Recommended 1:2-3 spawn to substrate ratio for consistent, high-yield results.
- • **Proprietary Premium Blend:** Unique composted horse manure and coco coir mix, perfected for dung-loving species.
- • **Versatile Growing Options:** Ideal for monotubs, filter bags, outdoor beds, or direct bag/tray cultivation.

## Overview

North Spore's Boomr Bag is a 5 lb sterile, manure-based bulk substrate designed by mycologists to significantly increase mushroom yields. Featuring a secret proprietary blend of composted horse manure and coco coir, it supports dung-loving mushroom species and is trusted by growers worldwide. Suitable for various cultivation methods, it offers a reliable spawn-to-substrate ratio for optimal fruiting, making it a top choice for serious mushroom cultivators.

## Description

desertcart.com: North Spore Boomr Bag Sterile Mushroom Substrate, Manure-Based, 5 lb | sterilized mushroom growing substrate for monotubs, mycologist-formulated for dung-loving species, trusted by 350K+ growers : Pet Supplies

## Features

- HIGHER YIELDS FROM A SUBSTRATE BUILT FOR THE JOB: Boomr Bag is a sterile mushroom growing substrate formulated by mycologists specifically for dung-loving species; each batch is sterilized in a commercial-grade autoclave and lab-tested with biological indicators for contam-free performance
- A PROPRIETARY MANURE-BASED MUSHROOM SUBSTRATE BLEND THAT WORKS: made from composted horse manure, coco coir, and select substrate supplements, hydrated to field capacity, with balanced pH, rich nutrients, and aeration properties that support vigorous mycelial growth and consistent fruiting
- TRUSTED BY 350K+ MUSHROOM GROWERS AND COUNTING: North Spore's Boomr Bag has been refined over several years, made entirely from organic, non-GMO materials free of harmful additives, so beginners and experienced cultivators alike get a clean, reliable start every grow
- VERSATILE ENOUGH FOR ANY SETUP: use Boomr Bag in monotubs, filter patch grow bags, trays, and outdoor beds, or grow directly from the bag in a humidity-controlled grow room or Martha setup; mix 1 colonized grain spawn bag with 2-3 Boomr Bags for best results
- NO REFRIGERATION, NO STRESS: store at room temperature out of direct sunlight for several months; for best results, wait at least 1 week after arrival before use, and always apply sterile technique when inoculating to protect your investment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #18,334 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #206 in Garden Soil |
| Customer Reviews | 4.2 out of 5 stars 1,249 Reviews |

## Product Details

- **Brand:** North Spore
- **Global Trade Identification Number:** 00851555008931
- **Item Weight:** 5 pounds
- **Style:** Sterile substrate
- **UPC:** 851555008931

## Images

![Sterile Manure Substrate - Image 1](https://m.media-amazon.com/images/I/71UZ-9FQZGL.jpg)

## Available Options

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

## Questions & Answers

**Q: how long can the substrate last in the bag?**
A: Not long mine was green when it arrived.

**Q: Do I just need this kit and a spore syringe to grow or would I need something different or additional?**
A: You would want something like rye berries or straw depending on the mushroom. To inoculate with a spore syringe to colonize then mix in this substrate but if you have myceilium already colonized you would just mix it into this substrate. You wouldn't want to just inject this with spores, from my understanding.

**Q: How long will this product last before use when stored properly? And what would be recommended storage if possible?**
A: The sooner you use it, the better. Because it's a sterilized substrate, it will probably be fine for 6 months to a year. I'd keep it in a cool dry place. This is a good option and I've been pleased with the product.

**Q: Where do I acquire a rye, vermiculite, pearlite substrate?  Thanks**
A: amazon, home depot, hydroponic store...... but if you are planning to add it to this substrate you would need to sterilize it.  This bag is made to be used without adding anything to it

## Frequently Bought Together

- ‘Boomr Bag’ (5 lb) Manure-Based Sterile Mushroom Bulk Substrate | Maximum Yield Formula | Made in USA | Grow Dung-Loving Mushrooms | North Spore
- 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)
- Myco Labs Premium 5-Grain Mushroom Spawn Bags | Sterilized Grain Spawn | Injection Ports | 2 Quarts Each Bag | 2 Bags per Box

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-10-15*