The process involves imparting smoky flavor and warming a ham that has already been subjected to a cooking process. This differs from cooking a raw ham, which requires raising the internal temperature to a safe level. The intent here is to enhance the existing product with a desirable smoky characteristic.
Applying smoke to an already cooked ham allows for the addition of complexity and depth to its flavor profile. It does not require lengthy cooking times, minimizing the risk of drying out the meat. Historically, smoking was primarily a preservation method, but in this instance, it is solely for improved taste.