Premium pasteurised 50/50 bulk manure/vermiculite substrate. Manure is sorted by hand to remove any stones and sharp sticks. It is well rotted manure and just smells of soil. This bulk substrate is made with the perfect balance of horse manure and vermiculite which is hydrated to field capacity and the pasteurised. One of our best options for growing mushrooms.
 
Approximate volume: 1.5kg = 2.4 litres / 3kg = 4.8 litres
Automated & computer controlled pasteurization
Just add your colonised grain spawn or crumble in a colonised BRF cake
Fruit directly from the mushroom bag or make a monotub
Fast shipping
Made fresh to order every time
No quibble customer services
 
Containing by volume 50% vermiculite and 50% horse manure with added gypsum to adjust the pH. This premium mushroom substrate is pre-pasteurized, hydrated and ready to use right out of the bag. This product is sealed in filter patch mushroom bag and can be stored in the fridge for up to 14 days. If you need more time, it can be stored in the freezer and then thawed out before use.

Each substrate bag is sealed first and then pasteurized at >75ºC for 130 minutes in an automated computer controlled pasteuriser.
 
Use this for manure loving species such as Agaricus family or Shaggy Mane mushrooms (Coprinus comatus).

Simply add your colonised grain spawn and watch it flourish. You can expect higher yields using this technique compared to BRF in exchange for the extra little step in the process of making spawn - it's well worth it!

Fruit this substrate once it is fully colonised by exposing the block to fresh air and high humidity or use the monotub method widely discussed on the internet. Our monotub instructions can be found here.