Casaware ガラス茶こし付きマグカップ

The extra-fine strainer keeps even the tiniest leaf bits out of my cup, which is exactly what I wanted. I love watching the color bloom through the clear glass, and the handle sits comfortably in my hand.

Watching the tea deepen to a perfect amber through the clear glass is half the pleasure, and the glass handle stays cool even when the mug is piping hot. The fine stainless basket lets the leaves unfurl fully without any grit slipping through.

The extra-fine strainer really does its job—not a single leaf sneaks through into my cup. And being able to watch the color deepen in the glass makes brewing feel almost ritualistic, plus the handle stays cool to the touch even with boiling water.