I have always smoked ribs low & slow. Want to smoke st.louis spares at 275,anyone done this? I don't foil. Will they still be tender. Also is that temp at the grate?
Yep, done it (grate temp). I don't spritz or wrap. The only difference is they'll be done between 4-5 hours for an average rack. I rarely do St. Louis cut, preferring untrimmed spares, so I'm usually closer to 5 hours at 275F.