The type of hazard posed by inhalation depends on the form of the silica. Crystalline silica poses a serious inhalation hazard because it can cause silicosis. Amorphous silica can cause dusty lungs, but does not carry the same degree of risk as crystalline silica. Food-grade diatomite generally contains very low percentages of crystalline silica. Diatomite produced for pool filters is treated with heat, causing the formerly amorphous silicon dioxide to assume its crystalline form.
That doesn't say NOT dangerous, it says LESS dangerous.
Sharp glass vs not as sharp a glass. Still scary IMO.
Kinda like perlite dust. Not that bad but why risk it?
rinsing buds just accumulates the DE into the crevices (fine if you don't smoke the crevices (lol) EXCEPT for that one lone fat calyx at the base of the stem [you know what inflorescence is talkin' about ].
Also what about cutting micro tears into the waxy coating of the leaf.
Might force the plant to go into protective mode. Some say this stress brings about better buds but others think it takes away from the full potential of the plant.
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