The color of the covers on milk.

Gentlemen (and ladies) argue, and you didn’t think that the covers could be different in color... in different cities? Maybe milk everywhere and had a simple shiny cover, kefir green, but the color of the covers of the rest of the milk could vary by place of residence (and the origin of the product).
The fact is that in my childhood (late 80s-beginning 90s) I, a moscovita, rested in Vologda every summer. There there really different dairy products had covers of not the same color as in their hometown. For the four-year-old, this initially caused shock and confusion. And then I just started collecting covers))) And discovered for myself the variety of their shades)