161 The Chemistry of Whiskey From Grain to Dram (S1E161)

In this illuminating episode, we delve into the complex world of whiskey chemistry, where grain, water, and time combine to create one of the world's most sophisticated spirits. Through engaging interviews with master distillers and flavor chemists, we explore the intricate chemical transformations that occur during malting, fermentation, and distillation. Our journey takes us through historic Scottish distilleries and modern American craft operations, where we'll examine how different grains, water chemistry, and still designs influence the final spirit. We'll investigate the crucial role of copper in removing sulfur compounds and how various cuts during distillation affect flavor development.The exploration continues as we uncover the fascinating chemistry of barrel aging. Through detailed demonstrations, we'll showcase how oak barrels contribute hundreds of flavor compounds through extraction, oxidation, and esterification. We'll investigate how environmental conditions affect aging, from temperature fluctuations to humidity levels. The episode highlights cutting-edge analytical techniques used in modern whiskey production, from gas chromatography to mass spectrometry. Finally, we'll explore how climate change is affecting grain production and barrel aging, and how distillers are adapting their practices to maintain whiskey quality in a changing environment.