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The Science of the Cask: Master Distiller Billy Walker on What Makes Great Whisky

Up to 70% of a whisky’s flavour comes from the wood. But what actually happens inside the barrel to create world-class whisky? Legendary Master Distiller Billy Walker unpacks the exact science of oak maturation, cask chemistry, and why age still matters.

In this episode of Cask to Glass, John sits down with legendary master distiller and blender Billy Walker from The GlenAllachie Distillery to explore the chemistry, craft, and science behind Scotch whisky.

With over 50 years of industry experience taking in many famous names including Hiram Walker, BenRiach, GlenDronach and Glenglassaugh…

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