Acme Beer Flat Top Can

San Francisco's Classic Acme Can

San Francisco's Acme Breweries produced some of the most widely recognized flat tops on the West Coast. Rising to dominance following the repeal of Prohibition, Acme became a dominant regional brewing force, supplying a major share of California's canned beer market.

Manufactured in partnership with the Pacific Can Company, early Acme flat top containers were marketed under Pacific Can's trademarked "Keglet" designation. During the earliest canning runs, Pacific Can had not yet prepared dedicated flat beer can lids, leading the factory to seal the initial production batches using standard soup can lids characterized by an inner pressure bead.

Acme flat tops feature several notable variations throughout their history, including changes in mandatory Internal Revenue Tax Paid (IRTP) labeling, adjustments between bold red and black color schemes, and later shifts to "Gold Label" branding. Certain production batches famously included the brief addition of a "Non-Fattening" claim on the label before regulatory authorities instructed the brewery to drop the wording.

The brand's prominence was supported by extensive West Coast advertising, from airborne neon signage to a widely broadcast promotional campaign touting Acme as preferred by a "6 to 4" margin. For collectors focusing on California breweriana, the San Francisco Acme flat top remains an essential representation of the Golden State's mid-century brewing industry.