Though you may see the "sulfite-free" label on bottles of wine, it's actually not what you think it means. Here's a breakdown ...

Humans have taken advantage of the metabolism in a tiny fungus called yeast to create beer and wine from grains and ... could occur in yeast extracts free of cells, making it possible to study ...

When you taste a wine or beer that calls up the flavor of rose or honey think phenylethyl acetate; it’s a by-product of the yeast cells that turn sugar into alcohol to make wine and beer.