AdvancePierre™ Foods has extended its premium Pierre Signatures line with the restaurant-style All Beef Jalapeño Cheeseburger sandwich. Each sandwich is hand-wrapped in a clear package, conveying a fresh, upscale look and appeal. The new Pierre Signatures sandwiches are designed to be sold from a refrigerated cold case or vending machine. They have a 14-day refrigerated shelf life. The sandwiches, packed 12 to a case, are available now nationwide.