Hakka sour tangerine tea is a pressed tea made by packing tea leaves and herbs into a hollowed hutou orange and steaming and sun-drying it repeatedly — a craft known as suankan-cha that earned the nickname "Taiwan's pu-erh" and a place among the three great Hakka teas. From the moment a hutou orange is picked in early winter to the finished tea ball, the process passes through repeated steaming, sun-drying, charcoal roasting, and aging; once dried, the ball can be stored for years and only improves with age. Longtan and Yangmei in Taoyuan are among the areas within the Hsinchu-Taoyuan-Miaoli Hakka belt where this craft is still preserved today.
Hakka sour tangerine tea is recorded in the intangible-heritage category of the Ministry of Culture's National Cultural Memory Bank. According to a January 2025 feature in Taiwan Panorama magazine, the traditional method involves nine cycles of steaming and sun-drying, charcoal roasting, and roughly three years of aging before the tea reaches full maturity — considerably longer than the one-to-two-month timeline sometimes claimed. Longtan's century-old Fuyuan Tea Factory in Taoyuan is one example of a local workshop that still produces suankan-cha today.
What is Hakka Sour Tangerine Tea (Suankan-cha)
To make suankan-cha, a hutou orange (botanical name: suan gan, or sour tangerine) harvested in winter serves as the vessel. The flesh is scooped out and the cavity is filled with tea leaves, perilla, licorice root, dried tangerine peel, and other ingredients; the stem cap is replaced as a lid. The filled orange is then steamed until soft, removed, and sun-dried — this cycle repeated nine times or more. The finished product has a deep brown, firm exterior. To drink, shave or grind off a small portion and steep in hot water; the liquor turns amber-orange, with a sour-sweet, herbal-tinged taste that mellows into sweetness on a long steep. A folk tradition of its digestive benefits has been passed down for generations.
Suankan-cha, Oriental Beauty oolong, and ground tea (lei cha) are known as the three great Hakka teas — each filling a different role: ground tea is an instant ready-to-drink guest offering, Oriental Beauty is a premium local specialty tea, and suankan-cha is a household-made, preservable food-culture heirloom passed across generations. Hakka communities in Taoyuan are centered in Longtan, Yangmei, Zhongli, and Daxi; the tradition of making suankan-cha remains active today, with some artisan workshops operating it as a livelihood. Taiwan Panorama magazine and the Council for Hakka Affairs have both produced feature coverage.
How to Drink It the Local Way
Local Knowledge
Verified Credentials
- The suankan-cha production craft has been recorded in the National Cultural Memory Bank and recognized as Hakka intangible cultural heritage with official cultural status.
- The Council for Hakka Affairs and Taiwan Panorama magazine have both produced feature coverage of suankan-cha, documenting the transmission of this craft in Longtan and Yangmei.
- "The three great Hakka teas" (suankan-cha, Oriental Beauty, and ground tea) is a classification jointly recognized in academic and folk-tradition studies of Hakka food culture.
Practical Tips
- Hutou oranges are harvested around the winter solstice each year (roughly November–December). Production takes approximately one to three months, so new-batch tea balls are difficult to source outside the hutou orange season.
- Quality varies widely on the market. When buying, prioritize workshops that specify "made locally in Longtan / Yangmei" and can explain how many steaming-and-drying cycles were completed.
- First-time buyers should consider purchasing a small amount of loose shaved or pre-ground suankan-cha in a bag before committing to a whole tea ball, to avoid disappointment if the flavor differs from expectations.
Sources: National Cultural Memory Bank, Council for Hakka Affairs records, Taiwan Panorama suankan-cha feature. Photos pending Dio's on-site shoot.
Frequently Asked Questions
Why is suankan-cha called "Taiwan's pu-erh"?
Both are post-fermented, pressed dark teas that improve with age and carry folk beliefs about medicinal benefits, which is why suankan-cha earned the nickname.
How long does suankan-cha need to age before drinking?
According to Taiwan Panorama magazine, the traditional method involves nine steaming-and-drying cycles and charcoal roasting, followed by about three years of aging before the flavor fully develops.
Where in Taoyuan can you still see traditional suankan-cha production?
The century-old Fuyuan Tea Factory in Longtan still produces suankan-cha today, one local example of the craft being preserved.
Sources
- 客家酸柑茶 - 國家文化記憶庫 — 無形資產收錄
- 啜一口陽光、時間的滋味 九蒸九曬酸柑茶 - 台灣光華雜誌 — 九蒸九曬、陳放三年製程
- 福源茶廠 | 桃園觀光導覽網 — 龍潭在地酸柑茶產製實例