The Maillard Reaction: The Science Behind Browning

Origin

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Description

The Maillard reaction — named after French chemist Louis-Camille Maillard, who first described it in 1912 — is the chemical process that produces the brown colour and complex flavour of seared meat, toasted bread, roasted coffee, baked pastry, and caramelised onions. It is not one reaction but a cascade of hundreds of chemical reactions between amino acids and reducing sugars at temperatures above 140°C (280°F). The Maillard reaction produces over 600 identified flavour compounds — more than any other single chemical process in cooking. Understanding it explains why: seared steak tastes different from boiled steak, toast tastes different from bread, and roasted coffee beans smell different from green beans.

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The Thread

—The Maillard reaction is universal — it operates in every cuisine, in every kitchen, in every fire-based cooking tradition since humans first held meat over flames

—It is the science behind the sear on Argentine asado, the char on Neapolitan pizza, the crust on French bread, the roast on Ethiopian coffee, and the golden skin on Cantonese roast duck

—Understanding Maillard is understanding why cooking with heat produces flavour that raw food cannot

Flavour Context

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