perlite

Using perlite is an excellent way to keep grow substrate humidity

Even the cubensis mushroom growkit which we sell in our online shop contains a top layer perlite.
The use of perlite as humidity buffer is a often proved method in mushroom cultivation.
This is the finishing touch when creating your own growkit.

Quantity: 1 liter

Warning:
We advice to use a mouth mask during working with perlite.
The perlite fibres could harm in case of breathe in.