Just how does grape juice become wine anyway? In today's edition of Ask The Expert we examine the core process behind the ...

At the time, nobody believed that yeast were alive; they were seen as just organic chemical agents required for fermentation. In the eighteenth and nineteenth centuries, chemists worked hard to ...

In practice, the weight of the grapes on the top crushes the grapes on the bottom and yeasts ferment the juice; the wine is partly a product of carbonic maceration and partly of traditional yeast ...