To use San Marino Corned Tuna, simply open the can and you're ready to go. You can add it to sandwiches for a quick and delicious meal, or mix it into salads for extra protein. Keep in mind that once opened, store the unused tuna in a sealed container in the fridge and consume it within a couple of days. There's no special maintenance needed, just keep the unopened cans in a cool, dry place. Enjoy this healthy and tasty tuna any time you want!