Listed as 5 oz capacity, which is a good standard for gongfu steeping, though it is spacious enough to comfortably fill with 8 oz of water. I have been reaching for this pot for daily use, as it is less fussy than a gaiwan, and I enjoy watching tea leaves expand in hot water. Quicker dissipation of heat through the glass seems to draw out or preserve the more subtle notes in tea, as the brew does not "stew" in a more insulated environment like ceramic. My favorite way to use this teapot is 3 grams of tea to 8 oz water, English style. I can drink a few different teas this way without the tea drunk!
