The Science Of Bark On BBQ (And How To Not Ruin It) - Tasting Table

"Mostly commonly forming on slow cooked hunks of fatty meat like brisket or when making pulled pork, bark is that thick blackened crust that forms on the surface, which is infused with an incredible amount of flavor and complexity from spices, fat, and smoke."

"Conlon broke down the formation of bark into several components. The first two you are probably familiar with. There is the caramelization that comes from the sugar in a barbecue rub, and the Maillard Reaction, which is the browning you get from meat proteins over high heat, and which Conlon says, "is central to bark's nutty flavor and depth.""

"Then there is the smoke. Combusting wood produces something called lignin that sticks to the meat, and he explains, "when wood burns in a pit, lignin undergoes pyrolysis (thermal breakdown), releasing aromatic compounds that are key to the smoky flavor and aroma of grilled foods.""

"Bark on barbecue is formed from the interaction of many processes like rendering of fat, the Maillard Reaction, and wood combustion. While all those reactions happen in lots of different barbecue recipes, bark forms on things like pork shoulder because of how important fat is to the process. Conlon tells us, "As brisket cooks, fat renders and coats the surface.""

Barbecue bark is a thick blackened crust that forms on slow-cooked fatty meats like brisket and pulled pork. It develops from multiple interacting processes, including caramelization from sugars in rubs and the Maillard Reaction from browning meat proteins over high heat, which contributes nutty flavor and depth. Smoke also plays a major role, because combusting wood produces lignin that adheres to meat and undergoes pyrolysis, releasing aromatic compounds that shape smoky flavor and aroma. Bark complexity comes from compounds in smoke that can taste spicy, sharp, sweet, or fruity. Fat rendering further supports bark formation by coating the surface as meat cooks, especially on cuts like pork shoulder and brisket.

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