06 Nov 2015 --- San Diego, CA — Like they do every year for the celebration of San Diego Beer Week, Karl Strauss just released their highly coveted Peanut Butter Cup Porter. Originally brewed for San Diego Beer Week back in 2012, this unique spin on a classic robust porter was an instant hit and has gone on to inspire other San Diego breweries to release their own peanut butter beers. Karl’s Peanut Butter Cup Porter has become so popular the brewery has had to triple its production each year for the last three years.