CAN TRAVEL TUMBLER GO IN THE MICROWAVE? 15 January 2020 13:54 Updated Follow No. All 24Bottles products are made of stainless steel and are not safe to put in the microwave. Related articles IS SIP&GO LID DISHWASHER SAFE? CAN TRAVEL TUMBLER GO IN THE FREEZER? IS TRAVEL TUMBLER DISHWASHER SAFE? CAN I FILL TRAVEL TUMBLER WITH ICE? DO I NEED TO USE SPECIAL CAUTION WHEN USING TRAVEL TUMBLER?