While the glasses are dishwasher safe, we recommend that you hand-wash your glassware one piece at a time in moderately hot water using a mild detergent. Use a soft cleaning cloth – do not use scouring pads or abrasive cleansers.
After washing in detergent, rinse your glass well in clean water then air dry on a draining rack or hand dry with a soft lint-free cloth.
To prevent cracking or breakage caused by extreme temperature variations, do not pour cold liquids into the glass that has just been washed in hot water. Likewise, allow the chilled glass to reach room temperature before immersing in hot water.