It gives several economical and durable options. According to USDA guidelines, you can maintain tinned food for 2 to 5 years, whether it's fish, poultry, beef, or pork. Shellfish like shrimp as well as various other seafood like scallops can be kept frozen for 3 to six months. Prepared fish ought to be maintained frozen for no more than four to 6 months. And smoked fish must only be maintained icy for 2 months before compromising preference.