We recommend cleaning your bottle and lid once per day to ensure that it remains mold and germ-free.The cleanliness of your bottle or pitcher is not covered under the warranty.Before cleaning your bottle, please reference the bottom of your bottle.  For bottles marked as “Handwash only” we recommend you hand wash your bottle with a non-abrasive dish soap and warm water. Do not use cleansers with harsh chemicals like bleach or chlorine as they can ruin your bottle.  For bottles marked as “Dishwasher Safe” please remove lids before placing in the dishwasher. Please note that harsh detergents, high water temperature and high mineral content in your water may affect the appearance of your bottle over time including water spots and/or fading.Watch this informative cleaning video for spout bottles.Watch this informative cleaning video for straw bottles.Watch this informative cleaning video for o-rings.Watch a cleaning video for the insulated coffee mug.