Vinegar to Clean Sippy Cups Clean sippy cups with white vinegar to get rid of that stinky smell. Distilled white vinegar (1/4 – 1/2 cup) 1 Large bowl (ours is 2.5 qts) Hot water Dishwasher (or hand-wash if you don’t have one) via Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Click to print (Opens in new window) Print Click to share on Tumblr (Opens in new window) Tumblr Click to email a link to a friend (Opens in new window) Email Like Loading... Related Clean ItKids