What's the secret to fast, air-free formula. This smartly-designed formula mixer. No clumps, no mess - just smooth, well-mixed formula in a flash. And this mixing pitcher's blades remains immersed, it keeps air bubbles out, aiding baby's digestion. Mixes up to 32 oz. Of formula or four 8 oz bottles. Dishwasher safe. Just pump the handle up and down for smooth, effortless mixing other mixing methods