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Ask Kate About Beer: When and why did breweries stop using pop-top cans?

Welcome to Ask Kate About Beer , in which The Takeout’s resident beer expert answers everything you’ve ever wanted to know about beer but were too drunk to ask. Have a question? Shoot it to [email protected]

Hey Kate, Recently when I was out hiking, I found an old rusty beer can with a pull-tab. I’m curious how old it is. When did breweries stop using these? And why?

I can’t resist a beer question that lets me do a bit of historical digging.

Beer and soda cans have gone through three major stages in the U.S. The first earliest beer cans, which debuted in 1935, sported a flat top that required a tool called a church key to open. This design had an obvious drawback: You needed to have the key—or some creativity—to open your can. Some breweries experimented with cone-top cans that could be opened with a standard bottle opener rather than a church key, but again, you had to have a tool on hand to get inside your can. The cone-top cans began to fall out of favor in the 1950s and were largely out of use by 1960. At this time, beer was still overwhelmingly consumed on draft or in bottles; only a quarter of beer in the U.S. was consumed in cans in 1953, according to Beer Can Collecting: America’s Fastest Growing Hobby .

By 1963, a Dayton, Ohio man named Ernie Fraze thought he had a better idea. He invented and patented the pull-tab beer can , the type you found. The can had a built-in tab that eliminated the need for a tool, a big improvement in terms of convenience. But the tabs and rings had their drawbacks, too.

“You could cut your finger badly on them. The tab, which was then replaced by a ring, would sometimes pull off and leave you with this sharp jagged piece of metal sticking up,” Dr. Mark Benbow, a beer-can collector and a history professor at Marymount University, tells The Takeout. “The very first ones were known as ‘finger rippers’.”

Welcome to Ask Kate About Beer, in which The Takeout’s resident beer expert answers everything you’ve ever wanted to know about beer but were too drunk to ask. Have a question? Shoot it to [email protected]

Beer pull tabs

A simple relic of 20th century life has taken on new meaning for archaeologists: The ring-tab beer can — first introduced 50 years ago — is now considered an historic-era artifact, a designation that bestows new significance on the old aluminum cans and their distinctive tabs that are still found across the country.

“Once an artifact attains the 50-year threshold, it is eligible to be recorded as an archaeological site or an isolated find in most states,” said William Schroeder, an archaeologist with the firm Reiss-Landreau Research in Yakima, Washington.

“This means that even beverage-can pull tabs are eligible for protection under state and federal laws.”

Schroeder discovered that this year marked the golden anniversary of the aluminum ring-tab while investigating a modern midden of beverage cans in Washington State.

“I was tasked with a small survey near the Cle Elum Dam in central Washington,” he said. The ring-tab beer can — first introduced in 1965 — is now considered a ‘historic-era artifact.’

“I encountered a small refuse scatter. It was full of beverage cans and bottles, some plastic oil quarts, et cetera. The cans were vintage, but I had no way to know for certain in the field whether or not the cans were historic — that is, 50 years old or older.”

Eventually he was able to discern labels on some of the cans that dated them to 1968 — not quite at the half-century threshold.

But the project still pointed out the need for a resource that archaeologists could use to date cans and their leftover tabs — which tend to be found more often than the cans themselves — and in turn help determine the historic value of sites where they’re found.

“Many folks have something of a fascination or passion for old beer cans, yet few had any knowledge that there were different kinds of openings, or that there was a way to tell the age based on the opening style,” Schroeder said.

After doing some research, he was able to find a comprehensive history of the American beer can — published by the Society for Historical Archaeology in 2009 — and then track down photographs of most of the known styles of tabs.

Schroeder then put this information together in a “key card” for archaeologists to use in the field.

Along the way, he found that, although other iterations of the pull tab were briefly used, the best-known version had reached an important milestone.

Ring tabs came into existence in 1965 — and meet the minimum age threshold now!” Schroeder said.

“They were typically teardrop in shape, with some having rounded distal margins, others squarish … the big difference being the ring top. The early models had solid aluminum tabs, no hole, no ring. That distinguishes them right away.”

The ring-tab design began to be phased out in 1975, after injuries were caused by people swallowing the metal tabs. It was replaced with a new modification called the StaTab, which used a flange of aluminum on the lid as a lever to press down on the sealed opening, a design that’s still in use today.

These small changes in design can make a big difference, Schroeder noted, because the ring-tab’s new status means it can be used to identify sites that may have historic value.

“If pull tabs are dismissed, it won’t be the end of the world,” he said. “But it’s our job to stop and consider these as artifacts and decide how to proceed.”

As an example, Schroeder cited a site that a colleague has been investigating in Washington: a campground that became one of the first major meeting places for the gay and lesbian community in the Northwest in the 1970s.

“The site may well be eligible to the National Register of Historic Places as a Traditional Cultural Property,” Schroeder said.

“Yet all that remains are camp pads, fire rings, and pull tabs. So, theoretically, the pull tabs may be the only way to place a temporal frame around the site, as none of the features will reveal specific enough age or date range.

“This is useful.” Part of Schroeder’s key card for can identification shows how opening mechanisms changed over time. (Courtesy Wm. Schroeder)

Schroeder stresses that the mere presence of 50-year-old ring tabs doesn’t automatically endow a site with protected status. And in some states, the age threshold for historic significance can range from 45 to 75 years.

But the 50th anniversary of the ring-tab is just the latest reminder that once-forgotten bits of material culture are constantly taking on new meaning as they age, a process that archaeologists need to heed.

“Some folks were disgusted with the thought of having to record an archaeological site of pull tabs; others are excited at the opportunity,” Schroeder said.

“Some find the artifact so mundane that it is not worthy of recordation, yet they’d stop to record a hole-in-top can.

“It is a phase shift — people need to begin to recognize the artifacts, have a reliable reference, and actually take the time to figure out whether or not the artifacts are a cultural resource.

“It’s going to take time until pull tabs become recognized to the extent that field personnel will know, ‘Hey, this is a site!’, just like they would if they found three pieces of cryptocrystalline silicate debitage [bits of stone used for making tools] on the surface,” Schroeder added.

“I look forward to that day.”

Schroder shared his research, and his key cards, earlier this month at the Northwest Anthropological Conference in Eugene, Oregon.

Beer pull tabs A simple relic of 20th century life has taken on new meaning for archaeologists: The ring-tab beer can — first introduced 50 years ago — is now considered an historic-era artifact,