I recently came across this information and wanted to share it for those with any interest.
It appears Can-A-Pop was being canned and sold already in 1953! The Collectable Soda Cans guide has it at 1954, which is the year they fully expanded their advertising, but never the less it was already being sold in 1953 in 5 states...Wyoming, Montana, Idaho, Oregon and Washington....and believe it or not I purely by fluke located a Canadian store in Lethbridge, Alberta that also had it for sale in 53.


Great Falls Tribune, 28 Aug 1953, Fri, Main Edition...source credit is newspapers.com Herald and News (Klamath Falls, Oregon)3 Dec 1953, Thu • Page 10 ...source credit is newspapers.com This is the news article describing the new plant being built in Long beach California.
Independent Press-Telegram (Long Beach, California) 13 Dec 1953, Sun ......source credit is newspapers.com
Click to super size! Albuquerque Journal, 28 May 1954, Fri, Main Edition......source credit is newspapers.com
Click to super size!

Great research! I know American Can Co (MiraCan) produced the Can-O-Pop cans in Seattle. We found some in the Wind Tunnel find.

Carl S wrote:Great research! I know American Can Co (MiraCan) produced the Can-O-Pop cans in Seattle. We found some in the Wind Tunnel find.

Thank you!

I think it was quite popular when it first appeared here in CO. We dig those early cans alot. Finding the ones from Denver is a bonus.

Scott Rollert wrote:I think it was quite popular when it first appeared here in CO. We dig those early cans alot. Finding the ones from Denver is a bonus.

I'll have to search for some ads from Colorado!...yes I bet it's a treat to dig those!

They also come from Hutchinson, Kansas. Dug alot of those nearby.

mountainrust wrote:They also come from Hutchinson, Kansas. Dug alot of those nearby.

Yea according to this article as of June 1954 the plant had not opened yet but was under way.

source: newspaper dot com.