What Is Emperor’s Clouds and Mist Tea? A Guide
On this page 7 sections
Say you enjoy a daily cup of green tea but want to try something special with a unique story and flavor profile. Emperor’s Clouds and Mist tea, also called Yun Wu, grows in misty mountain regions, giving it a distinct taste and aroma. This guide explains what it is, how it’s made, and what to expect when you drink it.
Emperor’s Clouds and Mist Tea Explained
At Starbucks, this brewed green tea comes from young leaves grown in misty mountain areas, which helps explain the light body and fresh, grassy taste. The cup is softer than black tea and usually less bitter than a long-steeped green tea.
Also known as emperor’s cloud or emperor’s cloud tea, this variety is prized for its delicate balance of taste and aroma. The processing involves heating the freshly picked leaves in a pan to stop oxidation quickly, a traditional method that maintains the tea’s natural grassy notes and reduces astringency. This gives Emperor’s Clouds and Mist tea a softer mouthfeel compared to many other green teas.
The moderate caffeine content usually ranges from about 20 to 40 mg per 8 oz cup, depending on brewing time and leaf amount. This level suits many people who want a daily green tea without the stronger stimulation of black tea or coffee. The name Emperor’s Clouds & Mist® tea often refers to branded versions of this classic tea, emphasizing its high-quality origin and careful harvesting.
How the Leaves Are Processed
The leaves are handled to keep oxidation low, which preserves the green color and the cleaner vegetal flavor. That gentle processing is what gives the tea its soft, mountain-herb note instead of a roasted or fully oxidized taste.
Hand harvesting is typical, with experienced pickers selecting only the freshest shoots. This careful selection ensures the tea’s clean, smooth taste. After picking, the leaves undergo traditional pan-firing, where they are gently heated in large woks to halt oxidation. This step preserves the green color and fresh aromas.
The constant cloud and mist cover acts like a natural filter, reducing sunlight and slowing photosynthesis. This environment increases chlorophyll and amino acid content while lowering catechins, the compounds responsible for bitterness and astringency. As a result, emperor’s clouds and mist tea has a mellow taste with less sharpness and more savory notes.
Flavor Profile
Expect a gentle grassy aroma, a little sweetness, and a clean finish. Hotter water or a longer steep pulls out more tannin, which makes the cup taste sharper and more drying on the tongue.
Unlike some stronger green teas or darker oolongs, this variety finishes smoothly with very low bitterness and almost no astringency. The “clouds” in its name reflect the soft, misty quality of the tea’s taste, which many find calming and easy to enjoy throughout the day. It’s lighter and less grassy than many standard green teas, and less robust than typical oolong teas, sitting somewhere in between.
The name “Emperor’s Clouds and Mist” can bring to mind other teas named for atmospheric or celestial imagery, like “Moon and Clouds” teas, but its flavor profile remains distinct for its mild sweetness and fine floral notes. The gentle balance here makes it a nice choice if you find some green teas too sharp or bitter.
| Tea Type | Flavor Notes | Bitterness Level | Color |
|---|---|---|---|
| Emperor’s Clouds and Mist | Sweet, vegetal, chestnut, floral | Low | Pale yellow-green |
| Typical Green Tea | Grassy, vegetal, sometimes bitter | Medium to high | Bright green |
| Oolong Tea | Floral, fruity, toasty | Medium | Amber to dark brown |
Caffeine & Sugar Drink GuideKnow exactly how much caffeine, sugar and sodium is in 150+ popular drinks, and set daily limits that fit you.Caffeine and sugar in 150+ drinksDaily limits, smart swaps and a cut-back planDaily caffeine and sugar calculator (Excel)Drinking Precautions
Most healthy adults can drink it safely, but caffeine still counts. If you are pregnant, aim for about 200 mg of caffeine a day from all drinks, and if you take iron supplements, don’t take them with tea because tannins can lower iron absorption.
Though this tea is not highly acidic, the mild acids present may irritate sensitive stomachs or worsen reflux symptoms in some people. If you have acid reflux or gastritis, it’s best to limit intake to about 4 oz (half a cup) once a day or switch to teas known for low acidity.
Pregnant people should keep caffeine consumption within recommended limits—usually up to 200 mg per day. One or two cups of this tea per day generally fits well within those boundaries, but always check your healthcare provider’s advice, especially if you consume other caffeine sources.
Those sensitive to caffeine, or who experience headaches, insomnia, or jitteriness from it, may want to try lower-caffeine alternatives like herbal teas (e.g., rooibos or chamomile) or decaffeinated green teas. These options provide warmth and flavor without the stimulant effects.
| Drink | Caffeine per serving | Servings | Total |
|---|---|---|---|
| 8 oz Emperor’s Clouds and Mist tea | 30 mg | 2 | 60 mg |
| 8 oz brewed coffee | 95 mg | 1 | 95 mg |
| Total | 155 mg | ||
| Daily caffeine limit for most healthy adults (400 mg) | 39% | ||
How To Brew It
For a better cup, use water just off the boil, about 175°F to 185°F, and steep for 2 to 3 minutes. Shorter steeping keeps it lighter and sweeter; longer steeping brings out more bitterness.
Keep your water temperature between 160°F and 175°F (70°C to 80°C). Water hotter than this can scorch the delicate leaves, making the tea bitter. Steep for about 2 to 3 minutes for a single infusion; shorter steep times avoid excess bitterness while extracting aroma and flavor.
Where To Buy Authentic Tea
Choose a seller that names the origin, tea type, and harvest date, and store the leaves in a cool, dry place away from light and strong odors. Good green tea should smell fresh and grassy, not flat or stale.
Beware of very low prices or vague descriptions like “premium mist tea” without a clear source. Such teas often lack the distinctive qualities of authentic blends and may be blends of lower-grade leaves.
Choose specialty tea retailers who share transparent sourcing details and harvest dates. Sellers who specify a spring harvest, especially Ming Qian (the early spring tea before Qingming festival), usually offer the best quality Emperor’s Clouds and Mist tea.