This is the true story of Ritchie Valens, a young rock and roll singer who tragically died in a plane crash at age 17. The film follows Ritchie from his days in Pacoima, California where he and his family make a meager living working on farms to his rise as a star. The film also focuses on Ritchie's friendship and rivalry with his older brother Bob Morales and his relationship with Donna Ludwig, his girlfriend.
Making the world better, one answer at a time. It depends on what type of Enzyme. Enzymes have different optimum pH depending on the environment they work in, for example and enzyme in the stomach of a human would have a pH of about 2 but an enzyme in human saliva has an optimum pH of 5.6.
Q: When should we check pH (mash, boil, fermentation, bottling?), and what values should we aim for? DM: The most critical stage for measuring pH is the mash, especially during starch conversion. The malt enzymes Î±- and Î²-amylase require a slightly acid pH to do their work. Values in the 5.0â5.7 range are alright, although values toward the lower end (5.1â5.3) are usually considered optimum.