Judith, I just went to the links posted here to get the price. Mine was always purchased at the feed store for about $10/8 pounds. However I have never seen it marked as Food Grade and so I don't worry about that issue. I'm sure that if they had to get it certified as Food Grade the price is considerably more just as it is with hydorgen peroxide Food Grade. Bill Keen
[email protected] wrote: I've used DE for years, and strongly urge folks to get food-grade DE if they plan to use it for themselves or their animals. Besides heat, the pool stuff is sometimes treated with chemicals that can be toxic. These would not be visible! While some pool stuff may be safe, why take the chance of poisoning yourself????? You can get food-grade DE pretty cheap if you buy it at organic nurseries. We get it for about $8 for a 20-lb bag, buying directly from a large supplier in multi-bag quantities. You should be able to find it for under $20 per bag at your local nursery. And 20 lbs of DE goes a long way :) Bill, if DE is mixed with grain, the law requires that it must be food grade. And I am completely confused about where you got the price of $1.50/oz. I get food-grade DE at about 2 cents/oz. Judith
