What makes the Breville Smart tea infuser so smart? It knows exactly the right temperature and steep time that brings out the best in different varieties of tea. Five different settings bring water to a suitable temperature for green, white, oolong, herbal and black teas. Just set your steep time from 1 to 5 minutes for mild, medium or strong flavor, and the infuser tells you when steeping is complete and automatically keeps it warm until you’re ready to enjoy.