---
product_id: 525745433
title: "Boomer Shroomer Dry Bulk Substrate for Mushroom Cultivation (Coco Coir, Vermiculite, Gypsum) | Produces 10 Pounds of Pasteurized Substrate, Enough for Two Monotubs | Mushroom Substrate"
brand: "boomer shroomer"
price: "¥9949"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/525745433-boomer-shroomer-dry-bulk-substrate-for-mushroom-cultivation-coco-coir
store_origin: JP
region: Japan
---

# 500g coco coir for moisture retention 500g vermiculite for optimal aeration 100g gypsum for pH balance and stability Boomer Shroomer Dry Bulk Substrate for Mushroom Cultivation (Coco Coir, Vermiculite, Gypsum) | Produces 10 Pounds of Pasteurized Substrate, Enough for Two Monotubs | Mushroom Substrate

**Brand:** boomer shroomer
**Price:** ¥9949
**Availability:** ✅ In Stock

## Summary

> 🍄 Grow like a pro—unlock your mushroom farm’s full potential!

## Quick Answers

- **What is this?** Boomer Shroomer Dry Bulk Substrate for Mushroom Cultivation (Coco Coir, Vermiculite, Gypsum) | Produces 10 Pounds of Pasteurized Substrate, Enough for Two Monotubs | Mushroom Substrate by boomer shroomer
- **How much does it cost?** ¥9949 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/525745433-boomer-shroomer-dry-bulk-substrate-for-mushroom-cultivation-coco-coir)

## Best For

- boomer shroomer enthusiasts

## Why This Product

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

## Key Features

- • **High Yield Output:** Produces 9-10 lbs of substrate—enough for two full monotub grows
- • **Premium CVG Blend:** Expertly balanced coco coir, vermiculite & gypsum for peak mycelial growth
- • **Beginner to Pro Ready:** Versatile substrate perfect for spawn-to-bulk transfers in any setup
- • **Just Add Boiling Water:** Simple hydration and pasteurization process for hassle-free prep
- • **Optimized Moisture & Airflow:** Superior water retention and aeration to maximize flushes

## Overview

Boomer Shroomer Dry Bulk Substrate combines 500g coco coir, 500g vermiculite, and 100g gypsum to create a premium, pasteurizable mushroom substrate. Designed for easy hydration with boiling water, it yields up to 10 pounds of substrate—enough for two monotub grows—offering optimal moisture retention, aeration, and pH balance for robust mycelial development. Ideal for both beginners and experienced cultivators seeking reliable, high-yield mushroom cultivation.

## Description

Boomer Shroomer Dry Bulk Substrate for Mushroom Cultivation (Coco Coir, Vermiculite, Gypsum) | Produces 10 Pounds of Pasteurized Substrate, Enough for Two Monotubs | Mushroom Substrate

## Features

- Premium CVG Bulk Substrate — Includes 500g coco coir, 500g vermiculite, and 100g gypsum, the ideal coco-coir, vermiculite & gypsum blend for mushroom cultivation.
- Just Add Boiling Water — Easily hydrate in a 5-gallon bucket using 16 cups of boiling water, then pasteurize for 24 hours to reach optimal field capacity.
- Large Yield for Multiple Flushes — This dry mix makes about 9 lbs of hydrated bulk substrate, enough for two full monotub grows or other fruiting setups.
- High Moisture Retention & Aeration — Coco coir offers water-holding capacity, vermiculite adds air pockets, and gypsum stabilizes pH — creating a balanced environment for strong mycelial growth.
- Versatile & Beginner-Friendly — Perfect for spawn-to-bulk transfers (S2B) in monotubs, trays, or filter bags; a popular and reliable choice for both new and experienced mycologists.
- Any questions or concerns please contact Ashley at ashley@boomershroomer.com

## Product Details

- **Brand:** Boomer Shroomer
- **Style:** Coco Coir,Vermiculite
- **UPC:** 196852195749
- **Global Trade Identification Number:** 00196852195749

## Images

![Boomer Shroomer Dry Bulk Substrate for Mushroom Cultivation (Coco Coir, Vermiculite, Gypsum) | Produces 10 Pounds of Pasteurized Substrate, Enough for Two Monotubs | Mushroom Substrate - Image 1](https://m.media-amazon.com/images/I/71-0PHHRPPL.jpg)

## Frequently Bought Together

- Boomer Shroomer Dry Bulk Substrate for Mushroom Cultivation (Coco Coir, Vermiculite, Gypsum) | Produces 10 Pounds of Pasteurized Substrate, Enough for Two Boomer Shroomer Inflatable Monotub
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**Shop now:** [https://www.desertcart.jp/products/525745433-boomer-shroomer-dry-bulk-substrate-for-mushroom-cultivation-coco-coir](https://www.desertcart.jp/products/525745433-boomer-shroomer-dry-bulk-substrate-for-mushroom-cultivation-coco-coir)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-23*