In BBQ, bark refers to the dark, flavorful crust that forms on the outside of smoked meats like brisket and pork during a long, slow cook. It develops as seasoning, smoke, rendered fat, and heat come together over time, creating a rich, smoky exterior. 

Good bark isn’t burnt or dry; it’s packed with flavor and adds texture to every bite. When you hear someone talk about great bark, they’re talking about a hallmark of real, low-and-slow BBQ done right!