My grocery store was out of buns today, and I do have some left from a week ago or a little longer. They look and smell fine (making me wonder if there’s anything real in them), but just in case, could I kill off any bacterial interlopers with, say, a 15-second zap in the microwave?

Topics: mold, microwave, bacteria, bread, Penicillin, hamburger buns, preventive zapping