This monologue podcast, "Inside Winemaking," hosted by Napa Valley winemaker Jim Duane, focuses on providing practical advice and insights for winemaking professionals and enthusiasts. The episode begins with a sponsor message for Harvest Pillar concrete trellis posts, highlighting their durability and flexibility. It then addresses a listener question about maintaining consistent sulfur levels during pre-bottling wine transfer, suggesting various mixing techniques (gas mixing is favored) and strategies for managing SO2 loss during bottling. Finally, Duane reviews three essential winemaking tools: a densitometer for efficient density measurement, an optical sorter for improved grape sorting, and FermRite bungs for superior barrel fermentation management. Listeners gain practical tips on winemaking techniques and equipment choices.