What is Rockwool?
Rockwool is a hydroponic growing medium made from the natural ingredients Chalk and Basalt. These two ingredients are then melted at a temperature of 1600° C (Celsius) or 2912° F(Fahrenheit). Once these ingredients are melted into a lava-like form, they are blown into a large spinning chamber, which pulls the lava into fibers like "cotton candy." Once the fibers are spun they are then compacted into a mat which is then cut into cubes. This process is very efficient, producing 37 cubic feet of wool from 1 cubic foot of rocks. Since Rockwool is born in the fire it renders the product chemically and biologically inert and creates the ideal growing medium for hydroponics. Since its development in the early 1970s, Rockwool has become the major vegetable and flower production medium throughout North America and Europe.
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