Hi folks. I happen to like this forum. I've been making wine from Sirrah grapes these last 2 years. I've always used commercial yeast. This year, I intend to use the grapes' natural yeast for fermentation. Am I doing right?
You can but since you don't and wont know what other microbes are present I really cant recommend it. Up to you tho. Me I would sulfite first then wait and pitch yeast that I know what to expect from.