humans. However, C. krusei only very rarely causes human infection-- and live yeasts are not found in chocolate. Like most other yeasts (such as Saccharomyces cerevisiae) Candida replicates by budding. This means that the single-celled yeast blebs off a much smaller daughter cell, usually more than one. Each daughter cell eventually falls off and later produces its own daughter cells, thus propagating the species. the yeasts can divide once every couple hours, and soon there are thousands of yeasts in a small area, producing their enzymes to break down the pulp on the outside of the beans. This makes acetic acid, which kills the embryo of the seed and develops the chocolately aroma, in the process eliminating the bitterness in the beans.