Why was it once illegal to transport Coor's Beer across the Mississippi River?

Answer 1

This was not exactly true.
It could not be transported accross the Mississippi for resale.But for personal consumption it could be done.

Answer 2

It was never illegal if it was for personal consumption. Coors used to have only one brewery, in Golden Colorado and cold filtered instead of pasteurized its beer. (in an age when everyone pasteurized) This required continuous refrigeration & they believed this limited its storage time. So they had no distributors east of the Miss. My guess is the REAL reason was that they simply didn't have the production capacity to expand east. As most states do not permit marketing of beer by other than licensed distributors there was no legal way to "sell" Coors at retail in those states. Now that Coors has acquired an eastern brewery, (and other premium beers also cold filter) there is no resaon to limit distribution.

Answer 3

Mlaw is correct.

FYI - my brother was in the Air Force during that period of time (70's), stationed in Virginia. When we would fly out from Colorado (our home) we would take him cases of Coors. We just checked it on the plane like luggage wrapped up in steel strapping material.

It was no secret what it was, we never got in trouble for doing it.