The cup. Ceramic cups are dishwasher safe, while China should be washed separately by hand. The handle of the cup should be kept away from any other cutlery to avoid damage.
You may be wondering: Is the travel cup dishwasher safe? The answer is: no. Travel mugs usually can't be dishwasher washed because the vacuum seal gives your travel mugs insulation properties. High temperatures in the dishwasher can damage these vacuum seals. Damaged vacuum seals can cause travel cups to lose their insulating properties and can cause travel cups to leak.

