一般餐酒係十幾% ABV,的確唔到60%,不過似乎發酵過程殺死病原體。
“Grapes are grown in the open air, with bird droppings and slug slime that come along with that,” says Michael Christian, winemaker at San Diego’s Los Pilares. “But the process of fermentation, which dramatically reduces oxygen levels in the solution, combined with the natural sugar levels [that] convert to alcohol and the natural acidity in grapes, eliminates pathogens.”
https://www.winemag.com/2020/03/17/stomping-grapes-winemaking-crush/