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How to make Sawdust Substrate

£4.95

Oak Sawdust Logs and Wheatbran

The substrate ingredient of choice for wood-loving mushrooms!

Makes approximately 4.5kg of sawdust wheatbran-enhanced mushroom substrate

  • 1.7kg of oak sawdust logs (combined weight of both logs)
  • Sawdust has 10% moisture content – extremely dry
  • 190g of Wheatbran

The included wheatbran has been measured to give the perfect ratio of nutrients at 10% to 90% sawdust dry weight.

Simply follow the guide below to create excellent sawdust bags.

How to make sawdust substrate

Submerge both of the sawdust logs in a bucket of cold water and within minutes they will fall apart by themselves. A little while later and all the sawdust will completely seperate…

oak logs in water

oak logs breaking up in water

Now take big handfulls of the sawdust out and squeeze the excess water away whilst transfering the sawdust to another bucket.

Add the 190g bag of wheatbran to the sawdust and mix thoroughly with your hands. This tends to soak up any excess water and make a perfectly hydrated mix.

sawdust hydrated

Test field capacity by taking a handful of the sawdust mix and squeezing it very hard, there should only be a small trickle of water before quickly stopping.

Now it’s time to fill your bags to be sterilised.

If you like, purchase our XL Mushroom Substrate Bag to accomodate the 4.5KG of substrate you have made, as in the image below.

Pressure cook at 15PSI for 3 hours.

sawdust bag

 

 

 

 
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    Is there a how to guide for using this for lion's mane? Do I mix spawn and sub in the substrate bag?
  1. Q Is there a how to guide for using this for lion's mane? Do I mix spawn and sub in the substrate bag?
    Asked on 5th April 2021 5:24 pm
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