Brown Rice Flour
The product of powdering brown rice is a popular substrate for growing mushrooms. Its use as a substrate was made popular by the use of cake spawns in the PF Tek method of growing. It is most often powdered into a flour and combined with vermiculite.
Cold Water Lime Pasteurization, is a cheap and effective low-tech way to prepare substrates for growing mushrooms.
This type of substrate treatment is easy for most people to do at home.
It’s even used by some small-scale commercial mushroom growing operations that want a low-tech, cheap and effective way to pasteurize straw.
The overall process is very similar to growing mushrooms on straw with heat pasteurization, the only difference is to replace heat with lime.
This process is mainly used to treat straw for growing Oyster mushrooms.
Use 20 grams of hydrated lime per 10 liter s of water.
Simply add the appropriate amount of lime to cold water, mix and add your straw. Leave the straw to soak for 24 hours and it is ready to be drained and inoculated.
Hardwood sawdust is used to grow wood loving mushrooms such as Shitake, King Oyster, Wine Cap, Chicken of the woods, Turkey Tail, Lions Mane, Maitake and Reishi mushrooms.
73 % Hardwood Sawdust
24.6 % Bran
2.4 % Gypsum
65% water added to the above mix.This mixture is added to a mushroom grow bag and steralized at 15psi for at least 2 hours ( depending on the size and amount of bags being steralized.Once cooled grain spawn is added, the bag is sealed for sterile colonization.