SIHA Active Yeast 10 (Red Roman) is a dry pure culture yeast which has particular advantages for the fermentation of red wine mash and red wine must. Along with color retention, advantages include rapid fermentation activation, reliable ongoing fermentation even in unfavorable conditions, a high alcohol tolerance and low SO2 production. In addition, SIHA Active Yeast 10 (Red Roman) increases the yield of sense-affecting polysaccharides. This yeast strain is excellently suited to southern wine varieties. Recommended for the following vine types: Cabernet Sauvignon, Lemberger, Syrah, Zinfandel, Dornfelder, Saint Laurent.