Oolong: The Family, from Floral to Roasted

Oolong: The Family, from Floral to Roasted

Oolong is the partially-oxidised tea family from Fujian, Guangdong and Taiwan; light floral through balanced honey to deep roasted mineral; rewards careful brewing.

Published 17 Feb 2026 Curator-written, not crowdsourced

Oolong, in summary: Oolong is the partially-oxidised tea family from Fujian, Guangdong and Taiwan; light floral through balanced honey to deep roasted mineral; rewards careful brewing.

Last reviewed by the teas.co.uk team in May 2026.

Oolong is the partially oxidised tea, sitting between unoxidised green and fully oxidised black tea. The 10-80% oxidation range produces enormous flavour diversity, from light floral oolongs (like green tea) to dark roasted oolongs (like black tea). The most complex tea category; the most rewarding to explore.

The oxidation spectrum

Oxidation level	Tea type	Cup character
0%	Green tea, white tea	Vegetal, fresh
10-30%	Light oolong	Floral, green leaning
30-70%	Medium oolong	Balanced; complex
60-85%	Dark oolong	Roasted, malty, black leaning
80-100%	Black tea	Fully oxidised

The major oolong styles

Tieguanyin (Iron Goddess of Mercy)

Light to medium oolong from Anxi, Fujian. Most recognised oolong globally. Floral, slightly milky, 25-50% oxidation typically. Premium grades £20-100+ per 100g.

Da Hong Pao (Big Red Robe)

Medium to dark Wuyi rock oolong. Roasted, mineral, complex. Premium grades £30-200+ per 100g.

Phoenix Dancong (Dan Cong)

Single bush oolongs from Guangdong. Each bush is named for the aroma it produces, Almond, Magnolia, Honey Orchid, etc. Specialty premium tier.

Jin Xuan (Milk Oolong)

Taiwanese light oolong with naturally creamy milky character (no actual milk added). Increasingly available in UK specialty.

Bao Zhong (Pouchong)

Lightest oolong style. Twisted leaves, floral, almost green tea like. Taiwanese.

High Mountain Oolong (Gao Shan)

Taiwanese mountain oolong (1,000m+ altitude). Premium light oolong. Floral, refined.

Oriental Beauty (Bai Hao)

Heavily oxidised (60-70%) Taiwanese oolong. Distinctive, partially eaten by leafhopper insects (which trigger the plant's defensive response, similar to Darjeeling's muscatel character). Honey fruit flavour.

What oolong tastes like

The cup character depends on oxidation level, region, processing, and roasting:

Light oolong: Floral, fresh, green tea like with body
Medium oolong: Balanced, fruity, often with milky or honey notes
Dark / roasted oolong: Toasty, malty, mineral, black tea like

Premium oolong is one of the most aromatically complex teas in the world.

The traditional brewing: gongfu

Oolong is the tea most strongly associated with gongfu brewing, small teapot, high leaf to water ratio, multiple short infusions. More on gongfu brewing.

Gongfu method for oolong

5-7g leaves in small pot (100ml gaiwan).
Water at 90-95°C.
Brief rinse infusion (5 seconds; pour out).
First infusion: 15-20 seconds.
Second infusion: 20-25 seconds.
Subsequent infusions: 30 seconds increasing to 60-90 seconds.
Quality oolong yields 6-10 infusions, each subtly different.

Western brewing for oolong

Standard Western brewing also works:

1 heaped tsp per 200ml in a teapot.
Water at 90-95°C.
Steep 3-5 minutes.
Drink black; can re steep 2-3 times.

How oolong is made

Pluck (typically more mature leaves than green tea).
Wither outdoors and indoors.
Bruise the leaves (toss in bamboo baskets, releases edge of cells).
Allow partial oxidation (10-85%).
Fix (heat deactivate enzymes when desired oxidation reached).
Roll into ball or twist shapes.
Dry; sometimes roast for darker variants.

Oolong production is the most complex tea processing, multiple judgment based steps requiring skill.

Caffeine

30-60mg per 200ml cup. Range overlaps with both green tea (lower) and black tea (higher) depending on oxidation level and brewing.

Use cases

Tea appreciation / tasting. The most rewarding tea category for sensory exploration.
Gongfu brewing sessions. Multiple infusions reveal layered character.
Pairing with food. Oolong's range covers light pairings (Tieguanyin with seafood) to robust (Wuyi rock with grilled meat).
Variety from black tea routine. If Yorkshire is too familiar.

Buying oolong in the UK

teas.co.uk, alongside trade friends like Mei Leaf, Postcard Teas and What Cha. Specialist Chinese / Taiwanese tea retailers.
Whittard. Some mid tier oolong options.
Asian groceries. Chinese groceries often stock everyday oolongs.
Teapigs Oolong. Premium temple bag option.
Direct imports from Taiwan / China. For serious enthusiasts.

Storage

Light oolongs degrade faster (similar to green tea). Best within 12 months. Dark roasted oolongs are more stable, 2-3 years.

FAQ

What is oolong? Partially oxidised tea, between green (0%) and black (100%). Wide range of styles depending on oxidation level.

Best oolong for beginners? Tieguanyin (light, accessible) or Da Hong Pao (medium, fruity roasted).

Caffeine? 30-60mg per cup, varies by style and brewing.

Is oolong healthier than green or black tea? Different polyphenol profile. Comparable benefits at moderate consumption.

Where to buy in UK? teas.co.uk, alongside trade friends like Mei Leaf, Postcard Teas and What Cha for specialist; Whittard for accessible.

Curator's note: oolong is the tea category I send drinkers to when they want to graduate beyond mainstream black and green. The variety is enormous, the cup quality is high, and the gongfu brewing experience is genuinely transformative. Worth investing in. Lee, Teas.co.uk, Tunbridge Wells.

The relevant aisle: the loose leaf range and worldwide teas.