3X 1kg Organic Brown Rice Flour (BRF) & Vermiculite bags PF Tek

$65.00 inc. GST

13 in stock

SKU 3BRF1KG Category


Your purchase includes:

  • 3 sterilised, ready-to-use bags filled with 1 kg of brown rice flour and vermiculite. Each bag features a self-healing injection port for easy use.
  • 3 alcohol wipes to help maintain a clean work environment.


These bags are thoughtfully designed to offer the ideal environment for mycelium colonisation. While they may not yield a heavy flush of mushrooms, they are optimised for rapid colonisation and fruiting.


Procedure for Use:

  • Once your bag is fully colonised, remove it from the mushroom grow bag.
  • Introduce it to a fruiting chamber. There are plenty of DIY tutorials on how to create your own fruiting chamber on YouTube.

One simple method involves setting up a fruiting chamber filled with Perlite (available at Bunnings). Just add some water and place the colonised bags on top of a piece of cardboard wrapped in aluminium foil to avoid contact with the Perlite. Ensure not to add too much water; the aim is to maintain humidity inside the fruiting chamber.

Inoculation Process:

  • In a clean environment, wipe the injection port with an alcohol wipe or spray it with isopropyl alcohol.
  • Shake the LC syringe, sterilise the needle with a flame, then let it cool for a few seconds.
  • Inject about 5-10ml of liquid culture or spore solution into the Brown Rice Flour + Vermiculite Bag.

Fruiting Process:

  • Once the mycelium block is fully colonised, cut open the bag and place the contents in the fruiting chamber. Depending on the variety, mushrooms should begin to appear within 7-8 days.
  • After your first harvest, rehydrate your mycelium block by submerging it in sterile water in the fridge overnight (use boiled water that has cooled down). It will then be ready for a second flush.

It’s essential to maintain sterile techniques, especially during the second or third flush, as the risk of contamination increases.

We recommend using the bags as soon as possible to minimise the chance of contamination.

With our kit, you can enjoy growing your own mushrooms in less than a month. If you encounter any issues, we’re always here to assist you.

Go to Mushroom Substrates to find more.

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  1. Take the bags out of it’s packaging as soon as possible, and keep them at room temperature, away from direct cold/heat sources.
  2. Do not store uncolonised bags in the fridge; only fully colonised bags can be kept to slow down the fungus and delay fruiting until ready.
  3. We recommend that the bags is colonised as soon as possible to minimise the chances of contamination or moisture loss.
  4. Work in front of a flow hood or a still air box or in a room with no air movement with the workspace adequately sanitised.
  5. Mix at least 15% grain spawn or higher of your desired species, mix it thoroughly in the bag, and let it colonise.
  6. Incubate at 22-24°C in a dark spot and keep all the bags at a distance from each other to avoid excess heat.
  7. Temperatures lower than 20°C make mycelium grow slowly, which could allow competing organisms to flourish. Temperatures above 24°C favour competing organisms rather than fungi, which increases the likelihood of contamination. Temperatures around 32-34°C will kill the mycelium.
  8. Prioritise airflow over, keeping the bag in a dark spot. If there is no air current during colonisation, the CO2 buildup inside the bag will not be able to be expelled out of the air filter patch. Excess CO2 buildup will suffocate mycelium, leading to slow growth and mycelium producing excess metabolite as a sign of stress, which changes the pH of the substrate and makes it easier for contamination to thrive.

Shipping Cost – The product is shipped via Australia Post using Express Post service for free. If multiple items are in the cart with varying shipping costs, only the highest shipping cost for a product in the cart will be charged.

Handling time- This product has 0 – 3 days handling time. However, it’s important to note that if other items are in your cart, the handling time may vary based on the handling time associated with those additional items. Handling time is not guaranteed during the busy holiday period.

Shipping time- Australia Post guarantees express post is delivered the next day in metro regions of Capital cities, but give it anywhere from 1-3 days for this package to reach you. Shipping times are not guaranteed during the busy holiday period.


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