In general terms, smoked salmon is a salmon fillet that has been cured This filleted salmon is then either hot-smoked, or cold-smoked to make the delicacy. Answer. Many of you fret over how long smoked salmon lasts mainly because you have paid quite a lot of money for it. There are three clear signs that you shouldnt miss. It hardly has a shelf-life of 2 days. Your email address will not be published. // ]]>//