Yunnan Purple Black (Zi Ya Hong Cha)
Yunnan purple black tea (Zi Ya Hong Cha) is dianhong's unusual cousin, made from purple-budded assamica leaf whose high anthocyanin content gives a distinctive twist on the familiar Yunnan black profile. Alongside the honey and malt you expect from Yunnan material, the purple leaf adds a particular astringency and a faintly grape-like or berry edge. The variable that matters most is the leaf material: naturally purple-budded old-tree leaf versus the bred purple cultivars.
Expect a Yunnan black foundation of honey and malt, plus the signature of purple-leaf material: a brighter astringency and a slightly grape-like or berry note that sets it apart from standard dianhong. The leaf often shows darker, purplish tones, and the liquor can carry a distinctive hue. Quality material stays sweet and rounded with the purple tang as an accent rather than a flaw; cheaper lots can come across simply sharp or thin, with the astringency dominating. Look for the usual Yunnan markers of tidy, well-made leaf and golden tips in better grades, and judge whether the anthocyanin character adds interest or just roughness. Note that purple covers both naturally purple-budded trees and dedicated purple cultivars, and they are not identical.
This is Yunnan tea, from the same western and southern prefectures that produce dianhong and puerh, made from anthocyanin-rich purple-leaf assamica. There are two distinct sources of purple: naturally occurring purple-budded leaf (ziya) found among old assamica trees, and dedicated bred purple cultivars such as Zijuan developed at the Yunnan tea research institute. Processed as a fully oxidized black tea, the high anthocyanin content of the leaf is what produces the extra astringency and the grape-like character on top of the standard Yunnan honey-malt base.
Gongfu: 5 g per 100 ml, 90 to 95°C, around 15 to 20 seconds for the first steep, ascending; watch the timing because the purple-leaf astringency builds faster than in plain dianhong. Western: 3 g per 200 ml, 90 to 95°C, 2.5 to 3 minutes. Keep below a full boil to keep the cup sweet and the astringency in check.
Yunnan purple black runs roughly €15-35 (about $16-38) per 100 g for typical lots. Old-tree or single-origin purple-leaf material reaches €40-70 (about $43-76) per 100 g.
Prices reviewed June 2026
Dianhong (Yunnan)
The standard Yunnan black and the direct reference point: same terroir and processing, but the purple leaf's anthocyanins add astringency and a grape-like edge dianhong does not have.
Zi Juan (Purple Beauty)
The bred purple cultivar (Zijuan); knowing it clarifies the split between purpose-bred purple leaf and naturally purple-budded old-tree material.
Zi Ya (Purple Bud)
The naturally purple-budded leaf itself; this entry is essentially that material taken all the way to a fully oxidized black tea.
The purple color in these teas comes from anthocyanins, the same family of pigments that make blueberries and red cabbage purple, produced by the tea plant partly in response to strong ultraviolet light at altitude; that same compound is responsible for the extra astringency in the cup.