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An image showing a mushroom millet grain bag beside a spore syringe and oyster mushroom
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Home Spawn & Substrate Sterile Mushroom Millet Grain Bag
Mushroom spores in a spore syringe for microscopy research
Z-Strain Spores £14.99
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A product image of a box featuring an electric propagator from Stewart Essentials suitable for mycology.
The Mushroom Incubator - Electric Fruiting Chamber £59.95

Sterile Mushroom Millet Grain Bag

£12.95 – £16.95Price range: £12.95 through £16.95

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What Size Syringe Do I need?

Our bags have a max amount of moisture they can hold, therefore it's important to check how much you need prior to setting up your project! These bags are purpose-made for Gourmet Health Mushroom spores and should be used alongside a bag sealer (for contamination-free second and third harvests) as well as a heat mat or heat chamber to keep the temperatures constant. Please refer to the table below for this information!

Disclaimer

Please note that it is illegal to grow magic mushrooms within the UK. We ask that you do not use these spores to grow mushrooms, but instead use them to study under a microscope. We cannot be held liable for any illegal use of these spores. Please check your local regulations as we cannot be responsible for the laws you should follow in your own country.
Bag Size Syringe Size Bag Sealer Size Heat Mat Size Incubation Chamber Size Predicted Yield Size
1lb Bag 2.5ml Small 7w 40L or 60L 50-75g
2lb Bag 10ml Small 7w 40L or 60L 100-250g
4lb Bag 20ml Large 20w 60L only 350-700g
50/50 Bag 20ml Large 20w 60L only 500g+
1kg Rye 10ml Small 7w 40L or 60L 100-200g
1.5kg Rye 20ml Large 20w 40L or 60L 300-400g
BRF PF Tek Kit 2.5ml Small 7w 40L or 60L 50-75g
Dutch Style 20ml - 20w 60L only 500g+
Sprinklebag 20ml - 20w 60L only 500g+
Oak Hardwood Kit 2.5ml Small 7w 40 or 60L 70-150g
Size Guide
SKU: SS-MS-02 Category: Spawn & Substrate Tags: millet grain, mushroom grain bag, mushroom millet substrate
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Description

Millet is one of the highest performing grains used in mycology, prized for its small kernel size, huge surface area, and fast colonisation speed. Whether you’re preparing grain to grain (G2G) expansions, liquid culture transfers, or bulk substrate inoculations (where legally permitted), our millet grain bag offers supercharged performance compared to larger grains like rye or wheat.

Each batch is prepared to a professional standard for maximum consistency. The grains are evenly hydrated and sterilised giving you a clean reliable starting point for your projects.

Why Millet?

  • Faster colonisation thanks to high surface area

  • More inoculation points per jar or bag

  • Even kernel size for smooth shake-ups

  • Less clumping, easier to break apart

  • Excellent for both beginners and advanced cultivators

Ideal Uses

  • Grain spawn

  • G2G expansions

  • Liquid culture inoculation

  • Creating clean, high yield grain bases

  • Research and educational mycology work

Quality & Preparation

  • Evenly hydrated premium millet

  • Sterilised and ready for use

  • Vacuum sealed to maintain freshness

  • Produced in lab clean conditions

Additional information
Weight N/A
Dimensions 23.5 × 15.9 × 15.9 cm
Weight

🪶 1kg £12.95, 💪 1.5kg £16.95

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£12.95 – £16.95Price range: £12.95 through £16.95
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