• a sterile 1kg rye grain bag to be used for making rye grain spawn
  • quick instructions for using Spore Supplies sterile grain with QR code link to a full guide
  • a pile of sterile rye grain for mushroom cultivation
  • detailed instructions for using Spore Supplies sterile grain bags
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Spore Supplies

Sterile Rye Grain Bag for DIY Mushroom Spawn

Sterile Rye Grain Bag for DIY Mushroom Spawn

£14.49 GBP
£14.49 GBP
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Taxes included.

Weight

In stock

This Sterilised Rye Grain bag allows you to start growing healthy mycelium for fresh mushroom production. Our rye grain is soaked for 24 hours,  simmered, then drained and laid out on a mesh screen to dry the outside of the grain, whilst leaving enough moisture on the inside to support mycelial growth. Plus, each sterile grain bag features a handy injection port for shooting your spores or liquid culture into. 

Every grain bag we make is sterilised in our medical-grade autoclave for 2 hours and 30 minutes, with a pressure of at least 15 PSI. This gives our blocks enough time at a minimum of 121ºC to reach the centre of the bag, ensuring all micro-organisms are killed off. We then heat seal the grain bag in front of a laminar flow hood to stop any contaminants from getting in.  

Features

  • Sterile Rye Grain 
  • T Filter Injection-Port Unicorn Bag
  • For Spore to Spawn Growth
  • Autoclaved For 2 Hours 30 Minutes
  • Sealed In Cleanroom
  • Batch Tracking
  • 'How To' Guide Included

What's Included

  • Sterilised Rye Grain In A T Filter Unicorn Bag With Injection-Port
  • 70% Isopropyl Alcohol Wipe

Not Included

  • Genetics
  • Aseptic Technique Kit

How To Use

To start growing mycelium with this rye bag: Using aseptic technique, wipe the injection port with the included 70% isopropyl wipe, then attach the needle to your chosen liquid culture/spore syringe and sterilise the tip of the needle (at your own risk). From there, insert your syringe into the injection port and inject around 10cc of liquid (depending on spores/culture). For more details check out our How to use your Sterilised Grain guide. 

Storage Instructions

All sterile bags should be removed from any delivery packaging immediately after being received. This allows the filter patch to breathe, which prevents moisture from passing through the filter and drawing contaminants into the bag.

We recommend storing the bags upright, in a cool, dark place like a cupboard, for up to 7 days to observe that the bag is sterile before use. Do not store in the fridge. All bags can be stored for up to 6 weeks, but should be used as soon as possible. Our sterile bags are covered by our sterile guarantee, so in the unlikely event that your unused bag contaminates within 30 days of receiving it, please contact us for a replacement.

Deliveries & Returns

Delivery:

We aim to dispatch all in-stock orders placed before 3pm Monday-Friday the same day.

If using our weekend delivery service, we will aim to dispatch your order before 10am Saturday-Sunday.

We ship all orders using the DPD Next Day service, so in most cases, you can expect to receive it the next day (if ordered before the cutoff).

For more info on dispatch times, services and delivery costs, check out our delivery page.

Returns:

Although unlikely, If for any reason your order arrives damaged, contaminated or not as expected, just contact us and we'll make it right.

Please note, we cannot accept liability for any used/opened sterile items, check out our returns policy for more info.

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Using Your Sterile Grain Bags

Full Instructions
  • illustration of a mushroom grow bag being injected with a spore syringe

    Inject Grain Bag

  • mushroom grow bag illustration with a warning to keep in the correct temperature and sunlight conditions

    Incubate Your Grain

  • mushroom grow bag illustration with mycelium growing from the bag and a warning to keep in the correct temperature and sunlight conditions

    Let Mycelium Grow

  • mushroom grow bag illustration with a spawn bag being added into a substrate bag

    Add To Substrate

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Full Instructions

how Our Sterile Grain Bags Are Made:

  • a pile of sterile millet grain for mushroom growing

    Perfectly Hydrated

    All of our grain recipes are hydrated using soaking or simmering methods, before being surface dried & placed into premium Unicorn filter patch bags.

  • 10 x 1.5kg sterile rye grain in 10T Unicorn mushroom bags with injection ports

    Steam Sterilised

    Once bagged and folded, our grain bags are sterilised inside our medical grade autoclave using high temperature steam to kill off all contaminants.

  • cleanroom HEPA filter fan blowing clean air

    Cleanroom Sealed

    After sterilisation, the grain bags are placed into our cleanroom to cool down before being sealed shut with our impulse heat sealer.

  • spore supplies magic myc customer service logo

    Quality Monitored

    When a sterile grain bag leaves the cleanroom, its quality is monitored to ensure sterility, ready for safe inoculation with genetics.

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Liquid Cultures

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Guides:

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