Pure Diatomaceous Earth
Diatomaceous Earth is a mineral consisting of the fossilized remains of DIATOMS; a microscopic single-celled algae with a hard exoskeleton. Deposits of Diatomaceous Earth diatoms vary in the amount of silica (fossilized shell flower) present. Perma-Guard sources it's Diatomaceous Earth from the highest quality mines across the United States.
High quality and pure silica are vital for the effectiveness of Diatomaceous Earth products.
Food Grade Diatomaceous Earth
Out of 600 deposits in the US only 4 are considered "Food Grade" by the FDA standards. Other food grade deposits may contain higher amounts of sediment and clay that make them less effective. Depending upon how the deposits were formed, clay and other particles clog the pores of the fossilized shells, disrupting the effectiveness of the Diatomaceous Earth. We have analyzed many other "Food Grade" deposits and are satisfied that we still obtain the highest quality Diatomaceous Earth for our products.
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