Potassium Sorbate Stabilizer is used to prevent your wines from refermenting after you bottle. Inhibits yeast reproduction, Commonly known as stabilizer.
Potassium Sorbate dissolves completely in wine to prevent yeast from fermenting. This product will not stop an active fermentation. It is typically used prior to bottling to prevent carbonating your wine.
Whenever potassium sorbate is used, a sulfite must be added at the same time or a compound called geraniol may develop. That's the same stuff that gives geraniums their distinctive smell, and it's also used to keep mosquitoes away. So unless you'd like your fine wine to double as a ladies' fragrance or an insect repellent, you'll probably want to follow the direction on your wine recipe closely for this one.
Do not add to wines that have gone through ML fermentation, or it can produce an undesirable "geranium" flavor.