What is the best food grade diatomaceous earth?

What is the best food grade diatomaceous earth? What is the difference in food grade diatomaceous earth? How diatomaceous earth is treated determines whether it’s Food Chemical Codex Grade or Pool Grade (also known as filter grade). Pool Grade diatomaceous earth is calcined, meaning it has been heat-treated and activated for use in filters. Food … Continue reading What is the best food grade diatomaceous earth?