I found this photo of a Budweiser can with a perforated opening on Worthpoint. The seller sold it on eBay last year with this description:
Truly bizarre can that likely held beer, as the gold foil pull top still stays on the top lid, but had been peeled back to expose the holes that would seem to be there to make the beer even more carbonated, as they are very small. I didn’t realize that Bud/Anheuser Busch put this into production, but this seems to be the case!
First time I’d ever seen it. Why had its inventor given the spout its colander-like pattern of holes? I doubted that their purpose was to “make the beer even more carbonated.” But what were those holes really for?
I soon learned that this was Continental Can‘s short-lived “Envir-o-can” closure. The point of this mid-1970s invention was to solve the problem of discarded ring-tabs.
I’m old enough to remember seeing lots of those discarded ring-tabs alongside Florida roads when I was in junior high school. There were also plenty of empty cans, of course, along the same roads. I guess the idea was that keeping the tabs attached to the cans would make picking it all up a bit more feasible.
Hence, the environmental brand name.
There’s more to tell about Envir-o-Can and its brief history, after the fold… [Read more…]