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.