What Is Pu-Erh Tea?

01. What is Pu-erh Tea?

Pu-erh tea originated in the Lancang River basin in southern and western Yunnan. It is made from fresh leaves of the Yunnan large-leaf tea tree. It can be compressed into various shapes (such as cakes, bricks, or tuos) via steam-pressing and matured over time; or it can be processed as Pu-erh loose tea or compressed tea using sun-dried green tea (Maocha-毛茶) through an artificial post-fermentation process.

02. What is Raw Pu-erh (Sheng Cha-生茶)?

Large-leaf tea grown in Yunnan is sun-dried (Shaiqing 杀青) and then directly pressed into cakes, tuos, or bricks. These are called raw cakes, raw tuos, or raw bricks. Unpressed tea is simply called Maocha.

03. What is Ripe Pu-erh (Shou Cha-熟茶)?

Large-leaf tea grown in Yunnan is sun-dried, then undergoes "wo-dui 渥堆" (piling/fermentation), and is finally pressed into shapes. These are called ripe cakes, ripe tuos, or ripe bricks.

04. How to distinguish between Raw and Ripe Pu-erh?

There are many ways to distinguish them:

• Appearance: Raw Pu-erh under 10 years old is dark green; ripe Pu-erh is dark brown.

• Aroma: Raw Pu-erh often has floral, orchid, or camphor notes; ripe Pu-erh has a distinct "aged" (malty/earthy) aroma.

• Liquor Color: Raw Pu-erh is orange-yellow; ripe Pu-erh is brownish-red or dark chestnut.

05. What category of tea does Pu-erh belong to?

Pu-erh belongs to neither black tea nor red tea. Because its processing and inherent characteristics differ from the six major tea categories, the Yunnan Tea Association has proposed classifying it as a "re-processed specialty tea" and redefining its position in the Chinese tea catalogue.

06. What are Spring, Summer, and "Valley Flower" (Autumn) Teas?

• Spring Tea: Harvested from February to April. The best is picked within 15 days after the Qingming Festival. Usually, one bud and one leaf are picked; the buds are fine and white.

• Summer Tea: Harvested from May to July, often called "rainwater tea." If processed correctly, the quality can approach that of spring tea.

• Autumn Tea: Harvested from August to October, known as "Valley Flower" (Gu Hua) tea.

07. What are the production processes?

• Raw (Sheng): Fixation (Shaqing) -> Rolling -> Sun-drying.

• Ripened (Shou): Fixation -> Rolling -> Drying -> Piling/Fermentation (Wo-dui) -> Drying.

• Sun-dried vs. Oven-dried: Sun-drying (Shaiqing) is the traditional process for Pu-erh, allowing for long-term aging. Oven-drying uses machines to dehydrate leaves, resulting in high fragrance but limited shelf life. Simply put: Sun-drying is the Pu-erh method; oven-drying is the Green tea method.

08. How is Pu-erh graded?

Pu-erh is graded into high, medium, and low quality. High-grade loose tea is labeled "Gongting" (Palace), "Li Cha" (Gift), or "Special Grade." Grades 1–5 are medium; 6–10 are low. Higher grades indicate more buds; lower grades contain more stems. Does a higher grade mean better quality? No, it only indicates the tenderness of the tea leaves.

09. What is "Dry Storage" vs. "Wet Storage"?

• Dry Storage: Stored in humidity below 80%, allowing natural, slow maturation.

• Wet Storage: Stored in humidity above 80% to accelerate fermentation, which often leads to mold. Unscrupulous merchants sometimes pass off wet-stored tea as aged dry-stored tea.

10. What to watch for when buying?

• The Four Keys:

  1. Clear (Qing 清): Pure aroma, no off-flavors.

  2. Pure (Chun 纯): Tea liquor should look like jujube, not pitch black.

  3. Correct (Zheng 正): Correct storage (dry), no moisture.

  4. Taste (Qi 气): Gentle on the palate, not muddled.

11. How to store Pu-erh?

Keep compressed tea in its original packaging. For loose tea, use a purple clay (Yixing) jar. Ensure the environment is clean, odorless, stable in temperature/humidity, and away from light. In short: Dry, ventilated, and odor-free.

12. Where are the tea regions/mountains?

• Old Six Great Mountains: Youle, Geden, Yibang, Mangzhi, Manzhuan, Mansa.

• New Six Great Mountains: Nannuo, Nanqiao, Mengsong, Bada, Bulang, Jingmai.

13. Main ingredients of Pu-erh?

Amino acids, alkaloids, tea polyphenols, tannins, caffeine, pigments, monosaccharides, proteins, organic acids, lipids, and vitamins.

14. Health benefits?

Lipid reduction, weight loss, skincare, hangover relief, anti-radiation, anti-aging, dental care, eye health, and stomach protection.

15. How to brew?

Purple clay pots are considered the best. Gaiwans are better for assessing quality. Office workers often use a "steep-and-pour" mug (Piaoyi Bei).

16. Glossary of Terms

• Appearance: Xianhao (plenty of fuzz), Yunjing (uniform/clean), Jinshi (tightly rolled), Feizhuang (buds/leaves are plump).

• Liquor Color: Qingche (clear/transparent), Mingliang (bright), Hunzhuo (cloudy/turbid).

• Aroma: Gaoxiang (high/lingering fragrance), Qingwei (grassy/raw smell due to under-fermentation), Chenqi (aged aroma).

• Taste: Huigan (sweet aftertaste), Nonghou (bold/strong), Se (astringency/numbing sensation), Ku (bitter).

• Tea Base (Leaves): Feihou (plump/thick), Xianliang (bright/fresh), Jiaoban (burnt spots).

• Specialty: Cha Tou (Tea Head): A clump of tea formed by pectin during fermentation. Very durable for multiple steepings. Best when boiled.