The characteristics and metabolism of non-Saccharomyces yeasts are discussed in more detail in Chap-ter 2.4. Also, further discussions on spontaneous fermentations can be found in Sections 2.6.7 (lambic beers), 2.7.2 (indigenous African beverages and Mexican pulque) and 2.8.4 (cider and perry). Also, the influences of various non-Saccharomyces yeasts and other microorganisms on the organoleptic qualities of spirits are discussed in Sections 3.2.3 (Scotch whisky) and 3.7.3 (grape pomace spirits).