---
product_id: 403797369
title: "Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum"
brand: "surfin' spores"
price: "¥6720"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/403797369-surfin-spores-cvg-mushroom-substrate-dry-bulk-substrate-for-mushroom
store_origin: JP
region: Japan
---

# 10 lbs premium substrate optimal moisture balance easy water-only prep Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum

**Brand:** surfin' spores
**Price:** ¥6720
**Availability:** ❌ Out of Stock

## Summary

> 🍄 Cultivate Like a Pro — Fresh, Fast, and Flawlessly Fueled!

## Quick Answers

- **What is this?** Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum by surfin' spores
- **How much does it cost?** ¥6720 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/403797369-surfin-spores-cvg-mushroom-substrate-dry-bulk-substrate-for-mushroom)

## Best For

- surfin' spores enthusiasts

## Why This Product

- Trusted surfin' spores brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Hydration Prep:** Just add water and pasteurize—no complex measuring, no mess, perfect for busy cultivators.
- • **Fresh On Demand, Always Ready:** Stay ahead with dry substrate that stays fresh until you hydrate—no waste, no rush.
- • **Precision-Engineered CVG Blend:** Expertly mixed coco coir, vermiculite & gypsum for unbeatable mycelial growth and nutrient flow.
- • **Versatile for Every Grow Setup:** Monotubs, grow bags, or custom methods—this substrate adapts to your cultivation style flawlessly.
- • **Maximize Your Harvest Potential:** Balanced moisture and nutrients fuel multiple flushes, delivering professional-grade yields every time.

## Overview

Surfin' Spores CVG Mushroom Substrate is a premium dry bulk mix of coco coir, vermiculite, and gypsum designed for serious cultivators. It yields 10 lbs of pasteurized substrate with optimal moisture retention and nutrient balance, compatible with monotubs and grow bags. Easy to prepare by simply adding water, it supports robust mycelial growth and multiple abundant flushes, making it a convenient, reliable choice for maximizing mushroom harvests.

## Description

desertcart.com : Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum : Patio, Lawn & Garden

## Features

- Fresh On Demand: Create substrate when needed; our dry CVG mushroom substrate stays fresh until you're ready to use it; just add water to prepare ten pounds of premium mushroom soil, perfect for serious cultivators seeking maximum freshness
- Premium Blend Formula: Expertly calibrated mix of coco coir, vermiculite, and gypsum; our CVG substrate creates the ideal environment for robust mycelial growth, balanced moisture retention and nutrient distribution for optimal mushroom growing
- Easy Preparation Process: Simple to prepare with just water and basic equipment; our bulk substrate for mushrooms transforms into ten pounds of pasteurized growing medium, comprehensive instructions included for foolproof results
- Versatile Growing Medium: Compatible with monotubs, grow bags, and other cultivation methods; our mushroom substrate works with various techniques, perfect addition to your mushroom growing supplies for consistent, reliable results
- Superior Yield Potential: Specially formulated substrate enhances mushroom production; the ideal moisture balance and nutrient profile in our CVG substrate promotes multiple abundant flushes, maximize your harvest with professional-grade quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QXVR5GF |
| Best Sellers Rank | #281,485 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3,972 in Garden Fertilizers |
| Brand Name | Surfin' Spores |
| Customer Reviews | 4.4 4.4 out of 5 stars (489) |
| Included Components | Coco Coir Bag, Gypsum Bag, Instruction Manual, Vermiculite Bag |
| Item Type Name | Mushroom Substrate |
| Item Weight | 3.2 pounds |
| Manufacturer | Surfin' Spores |
| Number of Packs | 1 |
| Style Name | Functional Mushroom Cultivation |
| Unit Count | 160 Fluid Ounces |
| Volume | 4.52 liters |

## Product Details

- **Brand:** Surfin' Spores
- **Item Weight:** 3.2 pounds
- **Number of Packs:** 1
- **Style:** Functional Mushroom Cultivation
- **Unit Count:** 160 Fluid Ounces

## Images

![Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum - Image 1](https://m.media-amazon.com/images/I/91MOJDd+avL.jpg)
![Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum - Image 2](https://m.media-amazon.com/images/I/51qtPdfBNlL.jpg)
![Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum - Image 3](https://m.media-amazon.com/images/I/51DFWcAgO+L.jpg)
![Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum - Image 4](https://m.media-amazon.com/images/I/51P5PjskwdL.jpg)
![Surfin' Spores CVG Mushroom Substrate | Dry Bulk Substrate for Mushroom Growing | Makes 10 lbs of Pasteurized Substrate | Perfect for Monotub Grows | Coco Coir, Vermiculite, Gypsum - Image 5](https://m.media-amazon.com/images/I/514wQEKZ+ML.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this suitable enough to use as the actual grow medium?  Would I still need the substrate (rye berry, etc)**
A: You will need to combine this with colonized grain spawn. It will not support colonization on its own.

**Q: What types of mushrooms grow best with this mix?**
A: Dung loving varieties

**Q: What would the mixing measurements for a small batch?.. Say ..only needing a lb or 2 at a time..**
A: I read that you can make a full batch and leave it for up to 6 months before using it all, so if you're going to be growing more batches in the near future, I'd probably just make the whole thing.  Otherwise, you can measure out 1/5 of each of the three ingredients.  The gypsum is the hardest to measure, but nothing needs to be exact, so I wouldn't worry too much.  The big thing is to start with much less water than they say, like 12-14 cups.  Now, they might be telling you that so you have enough boiling water to more thoroughly pasteurize the substrate, but if you use that much, you'll have to use a colander and/or manual squeezing and draining to get rid of the excess moisture.  If you don't know what "Field Capacity" means, you need to do more research!

**Q: How do I use this with a 32oz jar of colonized substrate?**
A: Boil water.... Drop all that stuff into a bucket or large pot an stir it up, add the heated water, seal it (i used plastic wrap ....but if you have a bucket with a lid use that) let sit for hours till its cool or at leased a little warm // ....now your ready to break out the monotub etc. Youtube 'Monotub and substrate'

P.s. dont use as much water as this pack says....mine had Way to much water, had to squeeze it out by hand, still to much....

## Frequently Bought Together

- Surfin' Spores Dry Mushroom Substrate Mix | Produces 10 Pounds of Pasteurized Bulk Substrate | CVG Blend (Coco Coir, Vermiculite, Gypsum)
- Boomer Shroomer Inflatable Monotub Kit, Mushroom Growing Kit Includes a Drain Port, Plugs & Filters, Removeable Liner [Patent No: US 11,871,706 B2]
- 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 Japan*
*Store origin: JP*
*Last updated: 2026-09-06*