Smoked sausage is a pillar of Texas barbecue. We talk a lot about the staggering sausage varieties—pork, beef, fine-grind, coarse-grind, hot guts, jalapeno-cheese, macaroni and cheese—but what’s ...

In Too Afraid to Ask, we’re answering food-related questions that may or may not give you goosebumps. Today: What in the world is sausage casing made of? “How the sausage is made” historically had ...