The cascade product says that it "contains sodium carbonate, sodium hydroxide, sodium hydroxide, sodium silicate and chlorine bleach." I would assume that this would mean it is safe to add regular bleach (which is chlorine bleach, correct?) in the dishwasher along with the detergent, but I'm not sure. I usually put a tablespoon at the bottom of the dishwasher to ensure disinfecting my dishes (I mix my cat's dishes with my own, so I like the idea of disinfecting). This may be kind of a bizarre question, but it's hard to find a definitive answer elsewhere. Thanks in advance.