In general, lunch meat is made of pork or beef with some starch or spices. After high temperature sterilization, some preservatives are added. It is stored in a sealed jar. If the lunch meat we bought is unopened, its shelf life is very long, which can reach more than three years. Put it in a cool, dry and ventilated place.
However, if you can't finish the lunch meat in a short time after opening it, you can put it in a fresh-keeping bag and put it in the refrigerator or freezer. However, the preservation method of this kind of lunch meat is very short. Generally, it can be preserved for about three days, so it should be eaten immediately.