Regular baking power for litter box odor control? As some of you have read I was using someting called Mineral Blue which worked very well, but was dyeing the feet on kitties blue. So after talking to the vet I want to minimize or completely get rid of the mineral blue. However, with 4 cats in 400 square feet odor control is a must. So I was thinking about just buying regular backing powder, thinking if it works in the fridge why not in the litter box? I'm also assumeing that it's not toxic to cats. Anyone have any experience?