Stanley IceFlow Flip Straw Tumbler - Black - 0.89L

No, this tumbler is specifically designed for cold and iced beverages. Using it for hot liquids is not recommended as it may affect performance and could potentially lead to safety issues with the straw mechanism.

The tumbler keeps cold fluids cold for 12 hours and iced fluids cold for an impressive 48 hours.

Yes, all components of the Stanley IceFlow Flip Straw Tumbler are dishwasher safe for easy cleaning.

This Stanley IceFlow Tumbler has a capacity of 0.89 liters (approximately 30 fluid ounces).

Yes, it is designed to be car cup compatible, fitting most standard car cup holders.

Yes, the Stanley IceFlow Flip Straw Tumbler is made with BPA-free materials.

The straw can be removed and cleaned with a straw brush and warm, soapy water. All parts are also dishwasher safe, which provides a thorough cleaning for the straw and lid.

Ensure the lid is securely twisted on, creating a tight seal. Also, make sure the flip straw is fully closed. Pre-chilling the tumbler with cold water or ice before adding your beverage can also enhance cold retention.

Thoroughly clean the straw mechanism and the area around its pivot point. Food or drink residues can cause stiffness. Ensure no foreign objects are obstructing the flip action.

Check that the lid is threaded correctly and tightened completely. Ensure the rubber gasket inside the lid is properly seated and free from damage or debris. Also, confirm the flip straw is pushed down firmly into its closed position.

This usually indicates inadequate cleaning. Disassemble the lid and straw, and wash all components thoroughly with warm, soapy water, paying extra attention to crevices. A mixture of baking soda and water can also help neutralize odors; let it sit overnight and then rinse thoroughly.