---
product_id: 650425381
title: "(1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms, Food Grade, No Additives - Packaged in HEPA filtrated Enclosure for Sterility (20.0 lbs)"
brand: "mycology basics"
price: "$347.81"
currency: USD
in_stock: true
reviews_count: 8
category: "Mycology Basics"
url: https://www.desertcart.us/products/650425381-1-0-20-0-lbs-mycology-basics-bulk-ultra-fine
store_origin: US
region: United States of America
---

# Optimized pH buffering for substrate Ultra-fine lab-grade powder HEPA-filtered sterile packaging (1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms, Food Grade, No Additives - Packaged in HEPA filtrated Enclosure for Sterility (20.0 lbs)

**Brand:** mycology basics
**Price:** $347.81
**Availability:** ✅ In Stock

## Summary

> 🍄 Elevate your mushroom game with lab-grade purity and precision!

## Quick Answers

- **What is this?** (1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms, Food Grade, No Additives - Packaged in HEPA filtrated Enclosure for Sterility (20.0 lbs) by mycology basics
- **How much does it cost?** $347.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/650425381-1-0-20-0-lbs-mycology-basics-bulk-ultra-fine)

## Best For

- mycology basics enthusiasts

## Why This Product

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

## Key Features

- • **Bulk 20 lb Supply:** Stock up and scale your grow with confidence—never run out mid-cycle.
- • **Ideal for Grainspawn:** Uniform gypsum coating promotes vigorous, healthy grain colonization.
- • **Superior pH Buffering:** Creates a perfectly balanced substrate environment your mycelium craves.
- • **Pure Ultra-Fine Powder:** No clumps or pellets—ensures smooth, even mixing every time.
- • **Sterile HEPA Packaging:** Guaranteed contamination-free for flawless mushroom cultivation.

## Overview

Mycology Basics Bulk Ultra-Fine Lab Grade Gypsum is a 100% pure, additive-free powder designed specifically for mushroom cultivation. Packaged in a HEPA-filtered sterile environment, it prevents contamination and ensures consistent, uniform pH buffering in substrates and grainspawn. Trusted by growers for its ultra-fine texture and bulk 20 lb quantity, it supports optimal mycelial growth and moisture retention.

## Description

Myco Basics sets the industry standard for high quality, organicically & ethically source Mycology Products. Our lab-grade gypsum is 100% pure, without clumps, lumps or granulation that makes it hard to break up and use in substrates or grainspawn. Our Gypsum is also packaged in a HEPA filtrated enclosure, meaning it will not contam your mushroom grow.

Review: Great price. Trustworthy brand - Great product! Everything is amazing about it. The value, the functionality, plant growth, moisture retention. I can't tell you enough if you use it for Mass use. It's very well and if you can find other uses for it, I'm definitely for the size and quantity you're getting. It's unmatchable plus it's trustworthy brand
Review: You get what's advertised - will buy again - The product came on time and delivery was prompt. The packaging was resealable which was very important to me. It was definitely ultra fine which made it very easy to mix in hot water to dissolve for use in my CVG substrate. I am totally satisfied with my purchase and will probably be reordering when needed. I use approximately one cup of gypsum with 1250 G of coco coir and 2 qts of vermiculite with 8 qts of water for great field conditions.

## Features

- Fine powder - no more chunks, lumps or garden style gypsum pellets
- Packaged in HEPA filtrated enclosure for sterility - no contamination
- Better PH Buffering - our fine powder disburses more easily, creating more uniform PH buffering in your substrate
- Great for Grainspawn - super-fine gypsum is best for grains, providing a uniform coating your Myc will love

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D3MBWRHW |
| Best Sellers Rank | #6,820 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #247 in Garden Fertilizers |
| Brand | Mycology Basics |
| Customer Reviews | 4.7 4.7 out of 5 stars (443) |
| Global Trade Identification Number | 00850037130412 |
| Item Form | Powder |
| Item Weight | 4.9 pounds |
| Manufacturer | DRMyc |
| Number of Items | 1 |
| Specific Uses For Product | Mushroom Cultivation |
| Unit Count | 40.0 Ounce |

## Product Details

- **Brand:** Mycology Basics
- **Global Trade Identification Number:** 00850037130412
- **Item Form:** Powder
- **Item Weight:** 4.9 Pounds
- **Specific Uses For Product:** Mushroom Cultivation

## Images

![(1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms, Food Grade, No Additives - Packaged in HEPA filtrated Enclosure for Sterility (20.0 lbs) - Image 1](https://m.media-amazon.com/images/I/51L1U9AEPOL.jpg)
![(1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms, Food Grade, No Additives - Packaged in HEPA filtrated Enclosure for Sterility (20.0 lbs) - Image 2](https://m.media-amazon.com/images/I/51koaLHUuTL.jpg)
![(1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms, Food Grade, No Additives - Packaged in HEPA filtrated Enclosure for Sterility (20.0 lbs) - Image 3](https://m.media-amazon.com/images/I/81AGue0Yp+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great price. Trustworthy brand
*by M***P on July 25, 2025*

Great product! Everything is amazing about it. The value, the functionality, plant growth, moisture retention. I can't tell you enough if you use it for Mass use. It's very well and if you can find other uses for it, I'm definitely for the size and quantity you're getting. It's unmatchable plus it's trustworthy brand

### ⭐⭐⭐⭐⭐ You get what's advertised - will buy again
*by J***R on February 4, 2025*

The product came on time and delivery was prompt. The packaging was resealable which was very important to me. It was definitely ultra fine which made it very easy to mix in hot water to dissolve for use in my CVG substrate. I am totally satisfied with my purchase and will probably be reordering when needed. I use approximately one cup of gypsum with 1250 G of coco coir and 2 qts of vermiculite with 8 qts of water for great field conditions.

### ⭐⭐⭐⭐⭐ No complaints!
*by M***N on August 8, 2025*

I bought this to make silken tofu and it worked perfect! The seal on the bag is really good and I don’t have to worry about it leaking.

## Frequently Bought Together

- (1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms, Food Grade, No Additives - Packaged in HEPA filtrated Enclosure for Sterility (20.0 lbs)
- Coco Bliss 650gm Bricks (5-Pack) - Organic Coco Coir for Plants - OMRI-Listed Coco Coir for Garden Soil & Potting Mixes - Coconut Fiber Mixes with Potting Soil for Indoor Plants & Outdoor Plants
- Burpee Organic Horticultural Add to Potting Soil | Ideal for Seed Starting, Water Retention and Plant Propagation | 100% Natural | 8 Quart, 1-Pack, Vermiculite (8qt)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/650425381-1-0-20-0-lbs-mycology-basics-bulk-ultra-fine](https://www.desertcart.us/products/650425381-1-0-20-0-lbs-mycology-basics-bulk-ultra-fine)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-17*