Fresh salmon can last up to two days in the refrigerator. Smoked salmon lasts up to a week. To maintain freshness, one should refrigerate or freeze salmon shortly after purchase.
Storing salmon in an airtight container and placing it in the coldest part of the refrigerator helps keep it fresh. If there are no plans to cook the salmon immediately, one can use a freezer-safe container or wrap it tightly in plastic wrap or aluminum foil, then place it in the freezer to maximize its shelf life. Frozen salmon can last between six and nine months. Before preparing frozen salmon, one should thaw it in the refrigerator overnight, or defrost it in the microwave. If the salmon smells fishy or has a slimy texture, it should be discarded immediately.