Lallemand

Lallemand Windsor - 500g

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LALBREW WINDSOR™ – BRITISH-STYLE BEER YEAST

LalBrew Windsor™ – ale yeast is a true English strain that produces a balanced fruity aroma and imparts a slight fresh yeasty flavor. Beers created with Windsor are usually described as full-bodied, fruity English ales. Brewers choose LalBrew Windsor™ to produce beers that range from Pale Ale to Porter with moderate alcohol levels and the flavor and aroma characteristics of the best traditional ales. Traditional styles brewed with this yeast include but are not limited to Milds, Bitters, Irish Reds, English Brown ales, Porters and Sweet Stouts.

 

 

Best For

Best For Traditional English Ales

Quickly see where this product fits best in a professional brewing program.

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Milds & Bitters

Lower attenuation, since it does not use maltotriose, leaves the full body these styles want.

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Irish Reds

Balanced fruity aroma with a slight fresh yeasty flavor.

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English Browns & Porters

Full-bodied, fruity English character for malty dark ales.

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Sweet Stouts

Residual sweetness and body from lower attenuation.

Technical Specs

Quick Brewing Specifications

Yeast Type Ale / Top Fermenting
Species Saccharomyces cerevisiae
Attenuation 65–72% | Medium
Fermentation Temp 59–77°F | 15–25°C
Flocculation Low
Alcohol Tolerance 12% ABV

Brewer Resources

Brewing Builds Featuring This Product

See how this product fits into complete brewing builds with compatible malt, hops, yeast, and process aids.

Beer Style Build

Stout Build

A roast-forward Stout build — pale base with flaked barley for body and a Blackprinz-and-chocolate roast layer, fermented with English-style ale yeast.

View Build

Technical Resources

Documents & Product Support

Download technical sheets, safety documents, and product reference materials for this product.

TDS
TDS

Windsor Technical Data Sheet

Official technical data sheet with product specifications, fermentation performance, and brewing application information.

View TDS
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Brand Partner

About Lallemand Brewing

Premium fermentation products for professional brewers, including dry yeast, bacteria, nutrients, enzymes, and process aids.

Lallemand Brewing is a trusted fermentation partner for breweries of all sizes, offering high-quality dry yeast and fermentation products built for consistency, reliability, and brewing performance. Their portfolio includes ale yeast, lager yeast, kveik strains, souring bacteria, conditioning yeast, nutrients, enzymes, and other technical brewing solutions.
For brewers, Lallemand provides practical fermentation tools that are easy to store, easy to manage, and dependable in production. Whether the goal is a clean lager profile, a hop-forward IPA, a traditional ale, a sour beer, or consistent bottle conditioning, Lallemand gives breweries proven options for building better beer from fermentation forward.
Montreal, Canada / Global Brewing Supplier

Why Brewers Choose Lallemand Brewing

  • •Premium dry brewing yeast built for dependable fermentation performance.
  • •Broad strain selection for ales, lagers, IPAs, Belgian styles, kveik, sour beers, and bottle conditioning.
  • •Practical fermentation products including yeast, bacteria, nutrients, enzymes, and brewing process aids.
  • •Strong technical brewing knowledge backed by Lallemand’s deep experience in fermentation science.
  • •Reliable option for breweries that need consistency, shelf stability, and easy yeast handling in production.

Why Pro Brew Supply Carries Lallemand Brewing

We carry Lallemand because their products make fermentation more dependable for brewers. Dry yeast gives breweries strong shelf stability, simple handling, and reliable performance without overcomplicating the cellar. Their wide strain selection also makes it easier to match the right yeast to the right beer style.

Lallemand Brewing