One of my WSET3 classmates asked a question this week that had me scratching my head: When exactly did people start adding yeast to grapes

Kirsten Georgi, DipWSET, CSW
One of my WSET3 classmates asked a question this week that had me scratching my head: When exactly did people start adding yeast to grapes
Someone left this bottle of wine at my house after a party. I hope they meant to leave it, because I can’t remember who it