---
product_id: 91102705
title: "40 mm - 30 pucks"
brand: "mountain valley seed company"
price: "€ 50.60"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mountain Valley Seed Company"
url: https://www.desertcart.it/products/91102705-40-mm-30-pucks
store_origin: IT
region: Italy
---

# Rehydrates with just 1/3 cup water Expands 15x original size OMRI organic & peat-free 40 mm - 30 pucks

**Brand:** mountain valley seed company
**Price:** € 50.60
**Availability:** ✅ In Stock

## Summary

> 🌱 Expand your garden, shrink your footprint!

## Quick Answers

- **What is this?** 40 mm - 30 pucks by mountain valley seed company
- **How much does it cost?** € 50.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/91102705-40-mm-30-pucks)

## Best For

- mountain valley seed company enthusiasts

## Why This Product

- Trusted mountain valley seed company brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Chic Growing:** Peat-free, raw coconut coir that’s OMRI listed for organic gardening—grow green, grow clean.
- • **Compact Powerhouse Soil:** 30 discs yield 5.5 quarts of premium coco coir soil—space-saving and ready to grow.
- • **Instant Hydration Magic:** Just add 1/3 cup water per disc and watch it expand 15 times into fluffy, airy soil.
- • **Versatile Growth Booster:** Perfect for seed starting, microgreens, houseplants, veggies, and even gourmet mushrooms.
- • **Superior Moisture & Aeration:** Enhances water retention and root oxygenation for faster, healthier plant growth.

## Overview

Mountain Valley Seed Company's 40 mm Minute Soil discs are compressed coconut coir wafers that expand up to 15 times their size with just water, yielding 5.5 quarts of organic, peat-free growing medium. Lightweight and eco-friendly, these discs improve soil aeration and moisture retention, ideal for indoor and outdoor gardening, seed starting, and specialty crops like microgreens and mushrooms.

## Description

desertcart.com : Minute Soil - Compressed Coco Coir Fiber Grow Medium - 40 MM Wafers - Bag of 30 = 5.5 Quarts of Potting Soil - Indoor Container Gardening: Seed Starts, Wheatgrass, More - Just Add Water - OMRI Organic : Patio, Lawn & Garden

Review: Extra fluffy! - This is excellent coco coir. It expands to an airy and light product that works great for both seed starting and bends for potted plants. The water runs through it quickly but remains full of moisture. What makes this particularly good coco coir is the expanded product is an especially fine grain, extra fluffy, and spongy (compared to other coco coir I’ve tried). I generally prefer coco coir over peat moss for both ecological reasons and the efficacy of coco coir over peat moss. This is particularly good coco coir and after using this product I don’t understand why people even bother with peat moss. Peat moss can easily dry into a solid bricklike substance whereas coco coir (especially this one) remains airy even if you accidentally under water. Since using this product there has been a noticeable improvement with my microgreen yield, my potted plants look happier, and the price point is reasonable. I’ve purchased this multiple times now and have been very satisfied every time. The only issue I have with it is it’s a rather large block and a bit of a commitment when you expand it to 15 gallons, but that is probably part of the reason it’s priced lower per volume than other products. To help avoid mold during storage I dry the expanded product in the oven on a low temperature (no hotter than 180 F). Higher temperatures release toxins into the soil like ammonium which are bad for plants so if you do this, keep the oven no hotter than 180 F. Then I combine it with 1 part vermiculite for 6 parts coco coir for an especially fluffy grow medium.
Review: Perfect! - Fantastic for growing gourmet mushrooms! Does not have additives that would be harmful for a grow, which is a relief after having a huge trichoderma disaster with another brand! Plus, the discs are the perfect size for fruiting a colonized 1qt jar! Very convenient :)

## Features

- 40 MM Minute Soil Discs - Bag of 30 - Add 1/3rd cup of water to each disc to re-hydrate - Expands up to 15 times - Yields approx 3/4th cup of soil per disc - Full bag rehydrates to Approx 5.5 quarts of soil
- Minute Soil by Mountain Valley Seed Company is pure, untreated, raw fibrous coconut coir that is compressed into light convenient discs or blocks that quicky expand into an amazing grow medium when you add water - OMRI listed for organic production.
- CONVENIENT - Lightweight, compact and Rehydrates quickly - Just add water - Peat Free - Eco Friendly - Raw & Non-ammended (add your own fertilizer). Much easier and tidyer than hauling large bags of damp potting soil.
- BETTER GROWTH - Minute Soil provides improved water holding capacity and aeration for faster, strong plant growth, and healthier roots.
- VERSATILE - Use as straight grow medium, or add to garden soil to improve water holding capacity & aeration. Ideal for any growing use: Indoor seed starts, garden soil, flowers, herbs, house plants, vegetables, microgreens, wheatgrass & more.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #4,999 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #118 in Garden Soil |
| Brand | Mountain Valley Seed Company |
| Customer Reviews | 4.6 out of 5 stars 3,609 Reviews |
| Style | Coco Coir,Discs,Potting,Garden |
| UPC | 740006038859 |

## Product Details

- **Brand:** Mountain Valley Seed Company
- **Style:** Coco Coir,Discs,Potting,Garden
- **Item Volume:** 5.5 Quarts
- **UPC:** 740006038859

## Images

![40 mm - 30 pucks - Image 1](https://m.media-amazon.com/images/I/61Or0uEP2JL.jpg)
![40 mm - 30 pucks - Image 2](https://m.media-amazon.com/images/I/716n8lXsPGL.jpg)
![40 mm - 30 pucks - Image 3](https://m.media-amazon.com/images/I/81BmWQ7AjYL.jpg)
![40 mm - 30 pucks - Image 4](https://m.media-amazon.com/images/I/81cua1oLjaL.jpg)
![40 mm - 30 pucks - Image 5](https://m.media-amazon.com/images/I/81jZru7Rz+L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Extra fluffy!
*by W***A on June 27, 2023*

This is excellent coco coir. It expands to an airy and light product that works great for both seed starting and bends for potted plants. The water runs through it quickly but remains full of moisture. What makes this particularly good coco coir is the expanded product is an especially fine grain, extra fluffy, and spongy (compared to other coco coir I’ve tried). I generally prefer coco coir over peat moss for both ecological reasons and the efficacy of coco coir over peat moss. This is particularly good coco coir and after using this product I don’t understand why people even bother with peat moss. Peat moss can easily dry into a solid bricklike substance whereas coco coir (especially this one) remains airy even if you accidentally under water. Since using this product there has been a noticeable improvement with my microgreen yield, my potted plants look happier, and the price point is reasonable. I’ve purchased this multiple times now and have been very satisfied every time. The only issue I have with it is it’s a rather large block and a bit of a commitment when you expand it to 15 gallons, but that is probably part of the reason it’s priced lower per volume than other products. To help avoid mold during storage I dry the expanded product in the oven on a low temperature (no hotter than 180 F). Higher temperatures release toxins into the soil like ammonium which are bad for plants so if you do this, keep the oven no hotter than 180 F. Then I combine it with 1 part vermiculite for 6 parts coco coir for an especially fluffy grow medium.

### ⭐⭐⭐⭐⭐ Perfect!
*by E***N on October 13, 2025*

Fantastic for growing gourmet mushrooms! Does not have additives that would be harmful for a grow, which is a relief after having a huge trichoderma disaster with another brand! Plus, the discs are the perfect size for fruiting a colonized 1qt jar! Very convenient :)

### ⭐⭐⭐⭐⭐ Great soil
*by K***Y on January 9, 2026*

Great soil for Amaryllis Bulbs!

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---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-23*