Take the fish out of the refrigerator and wrap it in a plastic sheet or foil paper. Discard any salmon with an off smell or appearance. How To Make Homemade Lox Gravlax Chop Happy Recipe Easy Brunch Recipes Easy Seafood Recipes Lox Because of this it is best to consume it within a five day period. . The best way is to smell and look at the smoked salmon. On average smoked salmon will be good for about 20 days if refrigerated. Keeping salmon in the fridge isnt exactly the best way to keep it fresh. Unopened packages of smoked salmon can last for months. Smoked Salmon Can Go Bad And Last In The Fridge. If youre wondering how long smoked salmon will last in the refrigerator it will last between 1-2 weeks. As long as you put smoked salmon in the coldest part of the refrigerator it can keep for 2 weeks. Unopened vacuum-sealed hot-smoked salmon will last in the fridge for two weeks provided it is within its expi