Spoetzl's flagship beer. Bock has been brewed since 1913, almost as long as the Spoetzl Brewery has been in business. However, it wasn't until a few decades ago that Shiner began producing Bock year-round. Bock was considered a lent beer, and therefore was only made around that season. Today 73% of the beer made at the Spoetzl Brewery is Bock.