Changes

It's clear from these excerpts that idolaters offer wine in sacrifice to their idols. And this means you can never be sure that wine purchased from idolaters hadn't been used in some pagan rituals. By partaking of such wine a Jew would indirectly participate in worshipping an alien god, which is strictly forbidden in Judaism. In modern time, there are different opinions whether all non-Jews are necessarily idolaters; some rabbis considered members of other monotheistic religions, that is, Christians and (especially) Muslims, to be excluded from that category.

There is a way, though, to protect wine from getting "spoiled" through contact with Gentiles. Ancient rabbis were convinced (hard to tell why) that boiled wine was unfit for being offered as a sacrifice. Which means that if you heat up some wine to a high enough temperature, then it can be consumed by Jews without the need to worry that it was, say, poured by a Gentile waiter who may have secretly consecrated it to his heathen godhead. Thus, flash pasteurization may protect wine from spoilage by both microbes and idolaters.