Redwood Mushroom Supply Sterilized CVG Mushroom Substrate, 5 lb.

Sterilized Substrate for High-Yield Mushroom Cultivation

The RMS Monotub Mix is a sterilized, manure-free substrate designed for growing mushrooms in monotubs or directly in the bag. Formulated from plant-based ingredients, it delivers manure-like water retention and nutrient availability—without the variability or risks associated with traditional substrates.

Fully hydrated and sealed in Sakato grow bags with 0.2 micron filters, this mix is a ready-to-use solution for growers who want consistent performance in bulk growing environments.

Product Features

Why Choose RMS Monotub Mix?

• Vegan Formula - Offers the hydration and nutrient profile of manure-based substrates without their potential drawbacks.
• Ideal for Monotubs & Grow Bags - Flexible enough for both bulk grows or in-bag fruiting.
• Balanced Nutrition - Formulated to support vigorous colonization and consistent fruiting.
• Perfectly Hydrated - Hydrated to field capacity for optimal yields.
• Reliable, Professional Packaging - Sterilized and sealed in Sakato grow bags with 0.2 micron filters for clean colonization with an outer bag for additional protection.

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Product Details

The Ideal Mix for Monotubs and Bag Growing

The RMS Monotub Mix is a fully sterilized, manure-free substrate formulated for fruiting mushrooms directly in monotubs or grow bags. Designed with the ideal hydration level and nutrient balance, this mix supports dense, healthy flushes of gourmet mushrooms.

Manure-Free Formula with High Performance

This vegan-friendly substrate is engineered to match the water retention and nutritional availability of manure-based alternatives, giving your mushrooms the environment they need to thrive. At the same time, it avoids the inconsistencies and microbial risks that can come with traditional manure inputs.

Perfectly Hydrated & Ready to Use

Each unit is prepared with an ideal moisture ratio, so there’s no need to mix or rehydrate before use. Just inoculate, incubate, and fruit—it’s designed for plug-and-play cultivation.

Packaged in Sakato Grow Bags with 0.2 Micron Filters

Every batch is sealed in a Sakato-brand autoclavable bag featuring a 0.2 micron filter patch. These industry-trusted bags are built for durability and clean gas exchange, making them ideal for monotubs and in-bag fruiting alike.

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Specifications

• Ingredients: Vegan Mix of Coir, Gypsum, and other additives.

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Usage

For In-Bag Fruiting:

Add fully colonized grain spawn directly into the bag using clean hands or tools in a sanitary environment. Mix thoroughly to distribute the spawn evenly throughout the substrate, then reseal the bag. Once fully colonized, cut slits or open the top of the bag to initiate fruiting.

For Monotub Use:

Use a ratio of 1 bag of grain spawn to 2 bags of RMS Monotub Mix. Open all bags in clean conditions, combine in your monotub, and mix well to ensure even distribution. Flatten the surface and proceed with your standard fruiting process.

Storage Recommendations

Store unopened bags in a cool, dry place, away from direct sunlight. Use promptly for best results and to maintain quality