The Sinner’s circle of gin distillation - Ginposium 2026

Controlling botanical extraction through temperature, time, chemistry, and mechanics

As the gin category matures, producers are increasingly focused on differentiation, consistency, and technical precision rather than simply botanical novelty. At the same time, distillers are experimenting with new still designs, vapour infusion systems, reduced-pressure distillation, and alternative extraction techniques—often without a clear framework to predict their impact on flavour.

Applying the Sinner’s Circle to gin distillation provides a common technical language that helps distillers understand why changes in temperature, time, chemistry, or mechanical handling alter flavour outcomes. This is particularly relevant as producers seek to preserve delicate aromatics, manage oxidation, and avoid overextraction while maintaining production efficiency. The framework supports both innovation and process robustness, making it highly relevant for modern craft and commercial gin producers alike.

Gin distillation is fundamentally an extraction process, yet the variables that govern extraction are often discussed in isolation. This session introduces the Sinner’s Circle, a classic framework from industrial cleaning science, and applies it directly to gin distillation to provide a unified, practical model for understanding botanical extraction.

Drawing on PhD research and industry case studies, the presentation explores how temperature, time, chemistry, and mechanical action interact to control the extraction of essential oils and terpenes from botanicals. Particular focus is placed on terpene classes (monoterpenes, sesquiterpenes, and diterpenes), their volatility and solubility, and how different distillation approaches—steep infusion, vapour infusion, reflux management, and vacuum distillation—shift the balance between desirable flavour extraction and unwanted degradation.

The session also examines practical considerations such as botanical preparation (comminution, agitation), basket configuration in vapour infusion, ethanol–water composition, and the impact of prolonged heat exposure on terpene oxidation and aroma drift. By framing these decisions within the Sinner’s Circle, distillers gain a structured way to predict flavour outcomes, avoid overextraction, reduce louching risk, and improve batch-to-batch consistency.

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Ginposium 2026

• • 12th June 2026
  • RSA House, London

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