Fermentis SafBrew S-33 Dried Yeast Special Beers. This yeast produces superb flavor profiles and is used for the production of a varied range of top fermented special beers (Belgian type wheat beers, Trappist, etc.). Sedimentation: Medium. Final gravity: High. Also recommended for bottle-conditioning of beers. Excellent performance in beers with alcohol contents of up to 7.5% a/v, but can ferment up to 11.5% a/v.