Production Guide: Remediating Hydrogen Sulfide and Reduction in Wine … Premium Content Access reserved for Denise Gardner Winemaking Members and Consulting Clients. Related Items:Production Guide: Wine Analysis Expected ResultsProduction Guide: Fining Agents DefinedProduction Guide: Barrel Management: Best PracticesProduction Guide: Reducing Copper in Copper Sulfate Treated WinesSpreadsheet: Pre-Canning Wine or Hard Cider QA/QC