Seattle Best Tea has been at 506 S King St, beside the Historic Chinatown Gate, since 1996. It is a family business: the owner, Chester Hsu, imports the high-mountain oolong, jasmine, Ti Kuan Yin and black teas from Taiwan and travels to the organic farms himself to watch how the leaf is grown and packed, with a few organic Chinese teas alongside. Phone orders go through Lydia at the counter, which tells you the scale of the place.
The shelf is split by roast rather than by country: light oolongs for Ali Shan, Li Shan and Jin Hsuan, heavy ones for Dong Ding, plus aged pu-erh going back decades. Formats are full canisters or the pound, not samples, so this is where to buy a tin you will actually finish. A 5.3 oz canister of Ali Shan is 65 US$ and one of Jin Hsuan 45 US$; a pound of gunpowder is 45 US$ and a pound of organic jasmine 41 US$, the cheapest pound on the list.
Free tastings at the counter are part of the visit, and the same leaf feeds a bubble tea menu — oolong milk tea, jasmine milk tea, taro, brown sugar — plus smoothies and ice cream made in jasmine and oolong flavours from their own tea. There is a second branch in the University District, at 4505 University Way NE. Hours move with the season: 10:30 to 20:00 every day in winter, 10:00 to 22:00 in summer.