A class that examines both the technical and practical aspects of beer brewing is scheduled again this fall at the University of California, Riverside Extension Center. Introduction to Brewing Science is an intensive introduction to the science of brewing beer. Designed for home brewers and others interested in the subject, the class covers microbiological and biochemical processes involved in brewing, styles of beer, raw ingredients, and brewing techniques. A field trip to the award-winning BJ's Brewery in Brea is included. John Oliver, head brewer for BJ's Chicago Pizza and Brewery Inc. will teach the class, which meets on Tuesday evenings from 6:30-9:30 p.m., Oct. 17-Nov. 14. The class is held at the UCR Extension Center, 1200 University Ave., Riverside. The course fee is $75. For more information about the course, call Jennifer Campbell at 909/787-5804 or e-mail: