Now I've been pointed to an article that claims the hydrogen peroxide sold in grocery stores in brown bottles is no good for this "home-brew" because it contains preservatives to keep the peroxide from deteriorating into water, which in turn contain an odor.SO, I now have to begin the search for pure hydrogen peroxide for my mixture. The guy who wrote the articlerecommended pool chemical peroxide. I know they have pool chemicals, but I'm really wondering if Wally World is going to carry that. Guess we'll see.