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Ale yeast

WLP002 / English Ale

The classic English ESB strain. High flocculation, fruity esters, signature stone-fruit character.

Also known as:Wyeast 1968 London ESB · WLP002 English Ale · Fuller's strain · Imperial Pub A09
Category
Ale yeast
Attenuation
63-72%
Flocculation
Very high
ABV Tolerance
9-10%

What it tastes like

If you've had Fuller's London Pride, ESB, or Vintage Ale, you've tasted this yeast. WLP002 (and its Wyeast counterpart 1968) is the strain that defines English bitter, ESB, and traditional English-style ales. It produces apple-and-stone-fruit esters, drops crystal-clear thanks to extreme flocculation, and finishes with a slight residual sweetness that balances English malts beautifully. It's the opposite of US-05 in personality — assertive and characterful where Chico is invisible.

applepearstone fruitsoft mineralityleaves residual sweetnessdrops bright

Best in these styles

English BitterESB (Extra Special Bitter)English Brown AleEnglish IPAEnglish PorterOld AleMild

Fermentation profile

Ferments cleanly at the cool end of ale temps. Drops aggressively — most beers are clear within a week of fermentation finishing. Lower attenuation than Chico means more body and residual sweetness; this is a feature for English styles that want malt presence, not a bug. Some brewers rouse the yeast (gentle CO2 bubble or gentle swirl) mid-fermentation to keep it from settling too early.

Temp range
62-72°F (17-22°C)
Ideal temp
65-68°F
Esters
Moderate-high — apple, pear, stone fruit, light marmalade
What to avoid
Letting it drop out before fermentation finishes. WLP002 will flocculate aggressively and can leave 2-4 points of unfermented gravity on the table if you don't keep it active. Gentle yeast rousing on day 4-5 helps. Also: don't expect dry, hoppy IPA character — this strain shines in malt-forward, traditional English styles.

Available as

WLP002 / English Ale is sold under multiple supplier brand names — same or near-identical strain.

FormatSupplierProduct codeNotes
Liquid White Labs WLP002 English Ale 100B cells
Liquid Wyeast 1968 London ESB 100B cells
Liquid Imperial Pub A09 200B cells

Comparable strains

If you can't source this strain, these alternatives bring overlapping character or fermentation behavior.

History

Believed to descend from the Fuller's brewery house culture (London, England) — Fuller's has been brewing on the same site since 1845. The strain became commercially available through White Labs and Wyeast in the late 1990s. Many of the best American interpretations of English bitter and ESB use this strain or a close descendant.

Related brewing guides

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