SafSpirit 1 is the most famous yeast for producing Scotch and single malt whiskies. As well as alcohol, it creates important higher alcohols such as fusel oils during fermentation, which are suitable for storing whisky in wooden casks. The yeast has a good tolerance to alcohol (15% ABV). Very good attenuation due to the assimilation of complex sugars, making it the best option for whiskies produced from malt, when enzyme additions are not allowed.