LalBrew Windsor Ale Yeast 11g

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.

Microbiological Properties

Classified as a Saccharomyces cerevisiae, a top fermenting yeast.

Typical Analysis of LalBrew Windsor Yeast:

• Percent solids  93% – 97%


• Living Yeast Cells  ≥ 5 x 10⁹ per gram of dry yeast


• Wild Yeast  < 1 per 10⁶ yeast cells


• Bacteria  < 1 per 10⁶ yeast cells

Finished product is released to the market only after passing a rigorous series of tests

*According to the ASBC and EBC methods of analysis

Brewing Properties

In Lallemand’s Standard Conditions Wort at 20°C (68°F) LalBrew Windsor yeast exhibits:

• Vigorous fermentation that can be completed in 3 days


• Medium attenuation and Low flocculation


• Fruity and Estery flavor and aroma, typical of traditional English style ales

The optimal temperature range for LalBrew Windsor yeast when producing traditional styles is 15°C(59°F) to22°C(72°F)

Windsor does not utilize the sugar maltotriose (a molecule composed of 3 glucose units).

Maltotriose is present in wort in an average 10-15% of all malt worts. The result will be fuller body and residual sweetness in beer. Be advised to adjust mash temperatures according to desired result.

Fermentation rate, fermentation time and degree of attenuation are dependent on inoculation density, yeast handling, fermentation temperature and nutritional quality of the wort.