What is yeast? Yeast are actually single-celled fungi, so they are similar to edible mushrooms, common baker’s yeast to leaven bread, and molds that ripen blue cheese. Yeast is used to ferment chocolate and alcohol including sprits, beer, and wine and to produce antibiotics for medical and veterinary use. For most of these applications, a specific strain of yeast is identified that excels at breaking down the specific sugar.
When human excrement is added into a septic tank, there are hundreds if not thousands of different types of microorganisms numbering in the millions or even billions. These microbes had previously developed
