Yosef Karo

“ Wine touched by a non-Jew that becomes mixed with permitted wine, the mixture in any ratio is forbidden for drinking...And there are those who say that all wine belonging to idol worshippers in this day and age is nullified in a ratio of sixty to one. ”

“ Vinegar belonging to an idol worshipper which fell into permitted wine, or wine belonging to an idol worshipper which felling to permitted vinegar, is permitted so long as no taste of the forbidden substance is detectable in the mixture. ”