When tea is ready, simply place it atop your cup. The entire unit is microwave safe but can be used with cold brew method! Easy to clean and dishwasher safe. Made in Taiwan with Tritan, a plastic specially-formulated to be safe in hot-temperature applications and is 100% BPA-free. Includes a BPA-free plastic filter basket. The entire unit is microwave safe. Also includes a handy drip-tray. 3.5″ Diameter. 16oz.