How long will kielbasa keep in the refrigerator after opening package?

Once opened, kielbasa can typically be kept in the refrigerator for about 3 to 5 days if stored properly in an airtight container or tightly wrapped. It's important to check for any signs of spoilage, such as off odors or sliminess, before consuming. If you want to extend its shelf life, consider freezing it, which can keep it good for several months.