Our Tea Mug, complete with an extra-fine 0.3 mm hole stainless-steel infuser and lid, is designed for a simple and clean way of steeping just one fresh cup of tea in your own cup. The extra-fine tea infuser gives you a perfect even steep every time, and enables you to steep fine loose-leaf teas such as Rooibos tea to large whole-leaf teas like Oolong tea. When your tea is done steeping, simply take the infuser out from the teacup and place it on the lid which doubles as a holder for your infuser. The ceramic mug is microwave and dishwasher safe. Stainless steel infuser is dishwasher safe only.