What You Need to Know
The stew’s chemistry hinges on collagen hydrolysis, which is accelerated by a mildly acidic pH from fermented barley beer and by salt-induced osmotic pressure. During an initial searing step, the Maillard reaction at 140–165 °C generates melanoidins and heterocyclic amines that deepen aroma and flavor complexity.
The Science
Primary Reaction
Collagen hydrolysis to gelatin during simmering, combined with Maillard browning during searing