The oldest tea store in Taipei also dries its own tea on-site, and does so in the old-fashioned way (with coal burners), which gives the final product an unusual depth and richness. Almost no tea manufacturers use this method any more. Part of the fun of shopping here is that you'll be given a fascinating tour of the drying area in the back (ask them to point out the caffeine that's calcified on the ceiling). After the tour, you'll sit down and try a few types. There's no pressure to buy, but you'll likely want to, as the tea is of the highest quality.