Most beverages are suitable for use in the tumblers.
Important: Please avoid placing dry ice or carbonated drinks in the vacuum-insulated tumbler, as pressure may build up, causing it to expand or break.
Dairy products and fruit juices can be used, but we recommend not leaving them inside for extended periods to prevent spoilage and potential rusting.
Since sports drinks contain salt that can corrode stainless steel, please rinse the tumbler immediately after use.
Before each use, check the interior of the tumbler for any rust or scratches..