Not so in Eastern Europe. Here in Croatia, most milk cartons, like the ones below, have the words "trajno mlijeko" written somewhere on it. The adjective "trajno" means "lasting" or "permanent". Pretty revolutionary when it comes to describing milk huh?
So what does this mean? It means that when you go to the grocery store all of the milk is unrefrigerated. It also means that once you buy the milk, it has a long shelf life. The stamp on the milk I opened this morning indicated that it would be just as good on October 12th as it is on June 1st. And that's still outside the fridge.
Thirdly, it means that even after you open it, the milk won't go sour for many hours, possibly even days - again, without being refrigerated.
Don't ask me how or why this is. I have no idea.
But I do know that this phobia is directly related to the one Eastern Europeans have. People don't drink their drinks cold here. Sodas, juices, water, etc. etc. generally remain outside of the refrigerator all the time. Ice is not used. Room temperature is the recommended warmth to drink your drinks by doctors and grandmas alike. So it's no surprise that milk comes unrefrigerated and remains unrefrigerated - to accomodate this mindset.
How do I drink my milk? Cold. Do I put it back in the fridge afterwards? Yes. Will I continue? Yes.
I am an American with Acerphobia.