☕ 【BPA FREE MATERIAL】The bottle is made of food grade PP material with an airtight lid and large ring handle, extremely durable and light weight. Plastic withstands hot temperatures from -30℃ to 70℃（-22℉ to 158℉). Do not worry about breaking during outdoor use. Do not dishwasher safe. ☕ 【LARGE CAPACITY PORTABLE TUMBLER】Easy to get a smooth cold brew concentrate with more caffeine and 60% less acidic than traditional hot coffee. The portable cold brew coffee maker has a flavor-locking lid to seal flavor and keep your drink fresh, great to brew & drink a delicious cold brew drink any time on the go! Max capacity is around 1L/34oz. Fits in most refrigerator doors. ☕ 【EASY TO USE】Easily make smooth cold brew with any type of coffee grounds or loose-leaf tea. Simply add coffee grounds to the filter(recommended ratio of powder to water is 1:15, adjust according to your preference), pour water, brew in the refrigerator overnight and enjoy. ☕ 【DETACHABLE FINE MESH & MULTI-FUNCTIONAL BREWING】Fine filter mesh almost full contact between the coffee powder and the water to extract the flavor of the coffee, no residue leakage. The detachable filter mesh is simple to use and easy to clean. The cold brew water bottle can be brewed with any type of coffee grounds, tea, fruit tea, and more. Clean the mesh promptly after use. ☕ 【LEAK-PROOF & LARGE HANDLE】The sealed leak proof cover effectively seal the fresh taste after brewing and no need to worry about leaks or spills. The bottle has a large handle on the top for easy carrying for camping, business trip or daily gym, and the top lid is specially designed for convenient drinking and dripless coffee pouring, without the need to unscrew the cap. watchget is engaged in providing good accessories to get better coffee. If you have any quality issues or concerns, just contact us anytime you feel convenient，we will do our best to solve it.