ArticleMaking Muscat, Battling VA, Finding Ideal SO2 LevelsWritten by Alison CroweNo matter which strain you use, be sure that you read up on all the specifications from the manufacturer around ideal performance conditions.Already a member? Log InYou'll Also Like Article MEMBERS ONLY Soapy Taste, Wine Pumps, and Testing Sulfite I suspect you’ve got a fatty acid issue caused by your stuck/sluggish fermentation. S. cerevisiae can emit fatty acids when under fermentive stress . . . Article MEMBERS ONLY Importing Juice vs. Fresh Grapes, Wild Fermentations, Sediment In The Bottle I prefer to have as much information as I can about where my raw material is coming from, and being able to handle the actual grapes is one way to help you get there.