How does the Maillard reaction work?

The Maillard reaction, as explained by Andrew Huberman, is a chemical process that occurs during cooking and contributes to the savory flavor of food. It is a type of non-enzymatic browning reaction that involves sugars and amino acids. Here's how it works:

1. Free Aldehyde Group: The reaction starts with a free aldehyde group which allows the sugar involved in the reaction to interact with amino acids.

2. Heat and Brazing: By applying heat, typically through a process called brazing, this interaction escalates.

3. Formation of Ketone Group: This interaction and heating lead to the formation of a ketone group, a compound that can be used for energy.

This reaction typically results in a savory, umami-like flavor, which can be seen when cooking meats or vegetables like tomatoes until they are browned. The flavors created by the Maillard reaction are more complex and are preferred for their depth and richness compared to simple caramelization, which mainly involves sugars and results in a sweeter taste.

This reaction is not only important for flavor but also influences the smell, often resulting in a savory aroma that can enhance the overall sensory experience of food 1.