This is a portable cold brew cup that combines the two major extraction processes of tea and coffee. It can quickly produce flavor in 10 minutes and is ready to drink immediately after cold brewing. It can extract pure tea, dried fruit tea, flower tea, and coffee. You can make cold brew coffee and cold brew tea at home, allowing you to have a "cool summer" at any time. It is portable and convenient, and you can enjoy the fun of cold brewing whether indoors or outdoors.