How much yeast would I need to make 1 bottle of wine?

Answer 1

I don't make wine, but do brew beer. Typical fermentation volumes are usually much greater than a single bottle. A mere pinch of wine yeast should do to ferment a bottles worth. When I make 15 gallons of beer I use about 325 ml ( about 12 oz) of liquid yeast slurry to ferment it with.

Answer 2

Very little. Just consider that when you make wine, 100% of the ingredients don't end up as wine. If you want one bottle, you might start with twice as much juice.
Dry wine yeast comes in a 5 gram sachet, and is good for up to 5 gallons. More yeast will not affect things other than it will ferment faster and can generally yield a cleaner tasting result (fewer nasty by-products caused by yeast working too hard). If you're dead set on only doing one bottle, use about 1/5 of a packet of wine yeast (they're only about a dollar anyway) and it should do the trick. I'd still recommend a larger batch to start with so there's extra for sampling, spilling, siphoning, etc.

Just don't juse baking yeast...it will wind up tasting yeasty and bad.

Answer 3

1/12 grams