We always recommend hand washing your craft beer glassware with a ph neutral dish soap.The majority of our glassware is dishwasher-safe; however, dishwasher detergent is very harsh and can potentially degrade the artwork and glassware over time.**Note, Artwork that is produced with precious metals:Hand Wash Only (Ph Neutral Soap) Using a dish washing machine will severely damage the precious metal ink. Precious Metal Colors: Bright Platinum Metallic & Bright Gold Metallic