Kuding Tea: China's Most Bitter "Tea", and How to Enjoy It

Kuding tea (ku ding cha, "bitter nail tea") isn't made from the tea plant. It comes from the leaves of certain holly species, mainly Ilex latifolia and Ilex kaushue ("large-leaf" kuding), or from privet, Ligustrum robustum ("small-leaf" kuding, common in Sichuan). The leaves are usually rolled into long, dark needles. It's caffeine-free and famously bitter, with a sweet aftertaste that follows. The trick is to use very little leaf and water below boiling: hot water makes it much more bitter.

I'll be honest: my first kuding was a dare. A friend who runs tea evenings in Ljubljana put a single dark needle in a glass, poured boiling water over it, waited five minutes and handed it to me with a grin. It was the most bitter thing I'd ever drunk, and I've had a lot of young sheng pu-erh. Then, a minute later, a strange sweetness came up in my throat. That's the point of kuding, I learned, but I also learned it doesn't have to be an ordeal. Here's how to make it pleasant.

What kuding is#

"Ku" means bitter; "ding" means nail, after the shape of the rolled leaves. It has been drunk in southern China for centuries.

Neither contains caffeine.

What kuding tastes like#

The liquor is pale green-yellow. The first sip is sharply, cleanly bitter, like a very strong bitter-herb liqueur without the alcohol or sugar. Then, a few seconds to a minute later, a sweetness rises in the throat and lingers. Tea drinkers will recognize this as hui gan, "returning sweetness", the same effect prized in young sheng pu-erh, just exaggerated.

Brewed carefully, kuding is bracing rather than punishing, with a cool, slightly grassy character.

How to brew kuding without the pain#

Tips:

• Start with one needle. It unrolls into a long leaf and gives plenty of flavour.
• Use cooler water. Boiling water sharply increases the bitterness.
• Pour off quickly, or brew grandpa style in a tall glass and top up often.
• Re-steep many times. Each round is gentler.
• Mix it: a single kuding needle with a few chrysanthemum flowers softens both. See chrysanthemum tea.

My side-by-side: the dare, and the fix#

The dare: 3 needles, boiling water, 5 minutes. Almost undrinkably bitter; the sweet aftertaste arrived, but I'd already reached for water.

The fix: 1 needle, 80 °C, 40 seconds. Clearly bitter, cool and clean, then a long, pleasant sweetness. I drank four refills.

Same tea. The water and the amount made all the difference, just as with bitter green tea.

How to choose kuding#

• Even, dark green, tightly rolled needles with no broken bits or dust.
• A clean, green, slightly herbal smell. Musty means old or damp.
• Ask which plant it is if you can. Large-leaf holly kuding is the classic.

A note on health claims#

Kuding is widely sold with health claims, from "clearing heat" to much bolder promises. As with all herbal teas on this site, we write about taste, not medicine. If you take regular medication or are pregnant, check with a doctor before drinking any herbal infusion regularly.

Myths#

"Kuding is a type of green tea." It's made from holly or privet, not the tea plant.

"Kuding has caffeine." It doesn't.

"It's supposed to be unbearably bitter." Only if you brew it hot and strong.

My honest take#

Kuding is not an everyday tea for me, but it's a fantastic palate lesson. Brew one needle gently, sit with the bitterness, and wait for the sweetness. After kuding, you'll understand exactly what pu-erh drinkers mean by returning sweetness.

The bottom line#

Kuding is a caffeine-free infusion of rolled holly or privet leaves, intensely bitter and then sweet. Use one needle per glass, water around 80 °C and short steeps, and it becomes refreshing rather than punishing. More in my Chinese herbal tea guide.

Read next: Rose Bud Tea (Mei Gui Hua Cha).