London ESB Ale (WY1968)
Type: Yeast • Packet: Liquid
Species: Saccharomyces cerevisiae
A very good cask conditioned ale strain, this extremely flocculent yeast produces distinctly malty beers. Attenuation levels are typically less than most other yeast strains which results in a slightly sweeter finish. Ales produced with this strain tend to be fruity, increasingly so with higher fermentation temperatures of 70-74 °F (21-23 °C). A thorough diacetyl rest is recommended after fermentation is complete. Bright beers are easily achieved within days without any filtration.
Brewing Properties of London ESB Ale
The functional properties of brewing yeasts have a direct impact on the performance, quality and economics of the resulting beer.
The alcohol tolerance determines the ABV at which yeast cells go dormant and stop fermenting.
Attenuation refers to the percentage of sugars converted to alcohol and carbon dioxide, as measured by specific gravity.
Flocculation refers to the tendency of yeast to form clumps called "flocs" that drop in order to make the beer clear.
The optimal temperature is the range in which the yeast performs best without putting off any off-flavors. Pitching the yeast into wort usually happens at the low end of the temperature range.
Comparable Beer Yeasts
If you cannot find London ESB Ale (WY1968) anywhere, you can substitute one of the following yeasts for a similiar result.
Common Beer Styles using London ESB Ale
These are the most popular beer styles that make use of the London ESB Ale yeast:
Bitters, English IPA, Dark Mild, Brown Ale, Strong Ale & Barleywine
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