Harris Food Grade Diatomaceous Earth
Harris Food Grade Diatomaceous Earth (DE) is composed of 100% ground freshwater DE, with no additives. The product is made of the naturally occurring fossilized remains of diatoms, a type of algae that forms in freshwater.
Our DE is mined in north western Nevada, near the California border. The DE deposits came from the western side of the Pleistocene era Lake Lahontan.