History of the San Andreas Fault, Gaspar de Portola, Andrew Lawson, Alfred Wegener and Harry Hess. The San Andreas fault is about 28 million years old. Back then, California didn't exist, at least not recognizably so. Bits and pieces could be found scattered around the western edge of North American, which at the time ended at the Pacific ocean lapping the shores of central Utah and Arizona.
Sourdough bread is made by the fermentation of dough using naturally-occurring lactobacilli and yeast. Sourdough bread has a mildly sour taste not present in most breads made with baker's yeast, due to the lactic acid produced by the lactobacilli.ourdough is a dough containing a Lactobacillus culture in symbiotic combination with yeasts. It is one of the principal means of biological leavening in bread baking, the others using cultivated forms of yeast.
Good article. Just one minor correction of fact. The term sour mash has nothing to do with any sour taste of the recycled mash. It gets its name from the fact that the process was developed based on methods used for making sourdough bread. Sourdough bread follows a similar method of using a prefermented starter with the new dough. Sourdough gets it's name from the flavor of the final product, but sour mash just gets it's name from copying the process from the other. The starter mash that is used in the sour mash process can actually be quite sweet sometimes.