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Soy Hulls


Soy Hull are a key ingredient in the  masters mix substrate pioneered by TR Davis of Earth Angel Mushrooms. Masters mix substrate colonises fast and has high yields, it encourages a larger than average first flush allowing for quick turnover. Masters mix is heavily supplemented and will require sterilisation.

To make masters’ mix you will need an equal weight of soy hulls and hardwood sawdust. This is to be hydrated to 60%. Use the following recipe to produce 2.3 kg of substrate which is inoculated with 200 grams of grain spawn.

  • 450 grams soy hulls
  • 450 hardwood sawdust
  • 1.4 litres water
  • Mix together and sterilize for 2h30.
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Additional information

Weight 0.1 kg
Dimensions 1 × 1 × 1 cm
Purchase Options

2.5lt, 5lt