The MADIC is top-rack dishwasher safe however, we suggest you follow the hand-washing recommendations below for best results:Remove the button and fill the reservoir with warm water and a small amount of dish soap.Replace the button and shake vigorously. Press the button until all the soapy water has dispensed. Repeat with fresh water until you have removed all soap and water runs clear. Allow to air-dry with the button off.  For a deep clean, use bottle cleaning products such as Bottle Bright.  Follow the instructions listed on the label.  Bottle Bright is the natural, biodegradable, grime-fighting cleaning tablets that takes your toughest to clean bottles to task.  Easy-to-use and ultra-efficient, Bottle Bright tablets dissolve in water creating tiny, effervescent bubbles that power through stubborn stains and odors cleaning your favorite bottles and containers in only a matter of minutes with no scrubbing, rubbing, or sponging required.