Baby Formula Mixer Our Baby Formula Mixer is designed to blend formula inside the baby bottle to get a smooth consistency, no more lumps and no more mess. No more waiting for the bottle contents to cool down to avoid burning your fingers, you can now blend the formula into a smooth consistency without the need to shake the bottle. How to use: Insert batteries as indicated on the handle of the mixer (2"AA"alkaline). To clean: Remove wand from the handle with a gentle tug and wash with warm water. Add water and formula to bottle as per normal. Insert Formula Mixer wand into the bottle and turn on to blend. DO NOT touch the wand when the unit is turned on and DO NOT remove the mixer from the bottle until the wand has stopped rotating.   With our Baby Formula Mixer there is no mess and no fuss.