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