1 pound grow bag of multi grain mushroom substrate folded facing forward

Multi Grain Mushroom Substrate Bag - 1lb

$7.73
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Multi Grain Mushroom Substrate Bag - 1lb

$7.73
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1 pound grow bag of multi grain mushroom substrate folded facing forward
1/6
  • 1lb of hydrated, sterilized popcorn, red milo and rye berries.
  • Uncolonized grain for inoculation with your chosen mushroom culture.
  • Self-healing injection port and 5-micron gas-exchange filter.
  • Allow full colonization before using the grain as spawn.

Multi Grain Mushroom Substrate Bag - 1lb

The 1lb Multi Grain Mushroom Substrate Bag contains hydrated, sterilized popcorn, red milo and rye berries, ready for inoculation with your chosen mushroom culture. Use this smaller bag to grow one culture through a mixed-grain batch before transferring the colonized grain to a compatible bulk substrate.

The bag has a self-healing injection port and a 5-micron filter patch for gas exchange. Keep the seal closed during inoculation and incubation, and leave the filter clear.

For a spawn-based grow, allow the grain to colonize fully before transfer. The linked manual also covers growing in the bag when that method suits your mushroom.

Read the Multi Grain Mushroom Substrate Bag - 1lb instructions

Multi Grain sizes and formats

See all grain bags

Bulk substrate for colonized multi grain

Choose bulk substrate for colonized grain according to your mushroom and growing method.

Multi Grain growing guides

These multi grain growing guides cover preparation, handling and substrate selection.

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

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