This ceramic tea infuser mug is ideal for making loose-leaf tea one cup at a time. The fine stainless steel infuser filters coarse and fine leaf teas. It is a large enough for the tea leaves to expand for proper steeping. Simply remove the infuser when your tea has brewed. The ceramic stoneware mug is strong, durable and dishwasher-safe. The lid will keep your tea warm while steeping and doubles as a coaster for your infuser when your tea is ready.