You've saved your left over expensive, smoked salmon from dinner and now would like to reheat it for lunch. Nearly all fish is safe to reheat as long as it has been handled properly prior to reheating. It is best to reheat your salmon in the oven. Microwaving is not the best choice when reheating fish because it can make your smoked salmon soggy and leave cold spots, which can harbor dangerous bacteria that can make you ill. That said, opt for an oven whenever possible.
Preheat your oven to 325 degrees Fahrenheit.
Place the salmon in a shallow baking dish.
Add a small pat of butter to the top of your salmon. Fish can dry out when it is reheated, so it's best to reheat it in sauce or butter.
Place the salmon in the oven for four to five minutes or until the butter has melted. Check the internal temperature of the smoked salmon by inserting a cooking thermometer. It should reach a temperature of at least 145 degrees Fahrenheit. Stick the salmon back into the oven for two to three minutes if it has not reached the required temperature.
Eat the reheated salmon as soon as possible. Do not allow the fish to sit out for more than two hours before reheating or after it has been reheated. This can allow harmful bacteria to grow.