The Asian chain Ten Ren is highly regarded by aficionados. Hand-rolled green jasmine tea is delicate but rich, with an intoxicating aroma. Stronger oolong teas are brewed over three or four tastings to develop flavour. Dark Ti Kuan Yin (Iron Buddha) can be taken Gong Fu-style, sipped quickly in small shot glass-style cups, and has a rounded floral aftertaste.