To clean, remove the EMPTY inner bottle from outer measuring cup: Holding the NALGENE GoCup(TM) horizontally, grab with one hand around the neck of the inner bottle and with the other hand grab the base of the outer measuring cup; PULL in opposite directions to separate. Once the cup is apart, clean with warm soapy water (dishwasher safe away from the heating element).
To clean, remove the EMPTY inner bottle from outer measuring cup: Holding the NALGENE GoCup(TM) horizontally, grab with one hand around the neck of the inner bottle and with the other hand grab the base of the outer measuring cup; PULL in opposite directions to separate. Once the cup is apart, clean with warm soapy water (dishwasher safe away from the heating element).