Direct causes of hydrogen sulfide and “reduced” sulfur-based off-odors is still a bit unclear. While basic wine production techniques decrease the risk of this wine flaw, many winemakers experience the incidence of this flaw several times over the course of their career. Hydrogen sulfide, commonly referred to as H2S, is usually correlated with inadequate nutrient […]
Wine Flaws
A Case for Copper Removal in Wine
New on the DGW Learning Center is a winemaking Production Guide on effectively removing copper from wines. Production Guides are intended for real-time use, can be easily printed from the website (or in pdf format) to act as a tool for cellar employees. Over the years, I have found that these easy-to-print and easy-to-laminate tools are […]
