Dr. Emma Walker is Master Blender for Johnnie Walker at Diageo, where she leads one of the world's most respected whisky blending teams and is responsible for shaping the future of the world's best-selling Scotch whisky. Since joining Diageo in 2008, Emma has built expertise across every stage of whisky production, from fermentation and distillation to maturation and blending. With a PhD in Organic Chemistry and extensive technical experience, she combines scientific precision with creativity to craft innovative whiskies while preserving the consistency and heritage for which Johnnie Walker is renowned.

In 2022, Emma became the first female Master Blender in Johnnie Walker's more than 200-year history, leading a team of whisky specialists responsible for managing millions of maturing casks across Scotland. Her work has included the development of new expressions and luxury releases while advancing sustainability, flavour innovation, and the next generation of Scotch whisky. Widely respected across the global drinks industry, Emma is a regular international speaker and competition judge, sharing insights on blending, innovation, premiumisation, and the evolving future of whisky.

As a speaker at the International Bulk Wine & Spirits Show (IBWSS) UK, Emma brings a unique perspective on product innovation, premium spirits, flavour development, and how leading global brands balance heritage with changing consumer expectations.