Why does one wine smell like ripe fruit while another hints of herbs or toast? The Aroma Code: Unlocking the Science of What You Smell in Wine explores the fascinating world of aroma chemistry and how volatile compounds shape the character of every glass. From fruity esters formed during fermentation, to tropical thiols unlocked by yeast, to earthy pyrazines found in grapes and roasting reactions, these tiny molecules tell a big story about where a wine comes from and how it was made. This approachable guide helps wine lovers understand the science behind their senses and discover how chemistry, grape variety, and winemaking techniques work together to create the aromas that define Willowcroft wines.