White Milo Mushroom Substrate Jars 12-Pack

White Milo Mushroom Substrate Jars 12-Pack

The White Milo Mushroom Substrate Jars 12-Pack is a bulk substrate solution designed for mushroom cultivators who need a high-quality, nutrient-rich growing medium. White milo’s small grain size promotes fast and even mycelial colonization, making it an ideal substrate for healthy mushroom growth.

Each 1-quart jar is filled with fully hydrated and sterilized white milo, providing a contamination-free environment. These jars are equipped with self-healing injection ports for easy inoculation and 5-micron filter patches to allow proper gas exchange. Ready to use, this 12-pack of white milo substrate jars supports multiple mushroom flushes and consistent results.

Perfect for large-scale growers or those stocking up for future grows, this bulk substrate pack provides a reliable foundation for cultivating a variety of mushroom species.

Click here to learn how to use this product.

Other sizes and formats

• White Milo Mushroom Substrate Grain Jar - 1qt — $11.28
• White Milo Mushroom Substrate Grain Bag - 3lb — $19.52

See all grain bags

What you'll need with it

• Spawn it into a bulk substrate — manure, pasteurized straw or hardwood
• Growing button or portobello? You also need casing soil

Guides

• How to use White Milo Mushroom Substrate Jars 12-Pack
• Preventing mould
• Storing unused spawn
• Which substrate suits which mushroom

Work out how much you need · Free shipping over $150.