# Tea Drunkenness (Cha Zui): What It Is and Why Sheng Hits So Hard

The short answer: tea drunkenness (Chinese 茶醉, cha zui) is a state of dizziness, weakness, sweating, and mild nausea brought on by a lot of strong tea, most often on an empty stomach. There's nothing mystical about it: it's the combination of a sharp caffeine influx, a drop in blood sugar, and tannins irritating the stomach. It passes in 20–40 minutes once you eat something. It most often strikes with young sheng pu-erh, which carries a high concentration of both caffeine and catechins.

## What does it feel like?

The symptoms are recognizable and fairly consistent: mild dizziness, sweat on the forehead and palms, a hollow, weak feeling in the body, a racing heart, sometimes nausea and ringing in the ears. The mood is often elevated, slightly floaty — hence the name. People familiar with Chinese tea culture sometimes confuse this state with cha qi (茶氣) — the "energy of tea." There is a difference: tradition describes cha qi as a pleasant warming wave, while cha zui is discomfort and a signal to stop.

## Why does it happen?

Three factors stack on top of each other. First, a heavy dose of caffeine: a gongfu session of 10 infusions on 7 g of leaf delivers 100–200 mg of caffeine within an hour — on an empty stomach it absorbs fast and hard. Second, hypoglycemia: catechins and caffeine affect glucose metabolism, and if you haven't eaten since morning, your blood sugar is already low; hence the weakness and sweating — essentially the same thing that happens from hunger. Third, tannins on the stomach lining: a strong infusion on an empty stomach irritates the mucosa, adding nausea to the picture. More on this in the "Tea on an Empty Stomach, with Meals, and at Night" guide.

## Which teas hit hardest?

The leader is young sheng pu-erh, 1–5 years old: the concentration of active compounds is high, and the mellowing of age hasn't arrived yet. Next come strongly brewed early green teas, dan congs and other highly aromatic oolongs at a dense leaf-to-water ratio, and any tea at all if you load 8–9 g into a 100 ml gaiwan. Least likely are shu pu-erh and aged white tea like Lao Shou Mei: their caffeine is partly transformed and their tannins mellowed. How sheng changes with the years is covered in the "How Pu-erh Ages" guide.

## What to do if it hits?

A practical routine: stop the session, eat something sweet or starchy — a cookie, a date, a piece of bread (Chinese teahouses serve sweets with tea for good reason), drink plain water, and sit for 15–20 minutes. The symptoms fade within half an hour. If the state doesn't pass, or comes with a pounding heart and shortness of breath, that's a reason to see a doctor rather than blame the tea.

## How to prevent it?

Don't start a session on an empty stomach — have at least a light snack first; keep something sweet at hand during long sessions; start the day with a gentle tea and save strong sheng for after breakfast; reduce the leaf: 4–5 g per 100 ml instead of 7 — you'll barely lose any flavor while cutting the load (more on dosing in the "How to Brew Tea in a Gaiwan" guide); and watch your total volume — benchmarks are in the "How Many Cups of Tea a Day" guide.


## Questions and answers

**What is cha zui?**

The Chinese term 茶醉 — "tea drunkenness" — a state of dizziness and weakness from strong tea, most often on an empty stomach.

**Is tea drunkenness dangerous?**

Not in itself — it's a passing reaction to caffeine and a drop in blood sugar. It resolves within 20–40 minutes after eating. With a heart condition, though, it's better not to push yourself there.

**Why does pu-erh make my head spin?**

It's usually young sheng: a high concentration of caffeine and catechins plus an empty stomach. Shu pu-erh causes this far less often.

**How is cha zui different from cha qi?**

Tradition describes cha qi as a pleasant warming wave of energy; cha zui is discomfort: weakness, sweating, nausea.

*This is informational material. If tea regularly gives you a pounding heart, shortness of breath, or fainting, that calls for a medical checkup, not a change of tea.*

Source: https://www.dao-cha.info/en/guide/tea-drunk