Lallemand Belle Saison Yeast

Belle Saison is a Belgian-style ale yeast selected specifically for its ability to create Saison-style beers. Belle Saison lets brewers create Saison-styles easily and with all the expected characteristics noted for this classic style. Classified as a Saccharomyces cerevisiae var. diastaticus and designed for warm-temperature fermentation true to traditional production methods, beers brewed with Belle Saison exhibit the “Farmhouse” flavors and aromas making for fruity, spicy and refreshing beer.

For best practices when using Saccharomyces cerevisiae var. diastaticus strains please download our “best practices” diastaticus document under the Technical Data Sheet section.

Microbiological properties:

Classified as a Saccharomyces cerevisiae var. diastaticus, a top fermenting yeast.

Typical Analysis of Belle Saison 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) Belle Saison yeast exhibits:

• Vigorous fermentation that can be completed in 4 days
• High Attenuation and Low Flocculation
• Aroma and flavor is traditional of Saisons with citrus and pepper notes.
• The optimal temperature range for Belle Saison yeast when producing traditional styles is 15°C(59°F) to 35°C(95°F)

Saccharomyces cerevisiae var. diastaticus strains are capable of utilizing some types of dextrins. Extra care should be taken to ensure proper cleaning procedures are in place to avoid any cross-contamination with other brews.

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

Flavor and aroma:

Technical datasheet:

Download Belle Saison Technical Data Sheet 

Download "Best Practices" Diastaticus