To use San Marino Corned Tuna, simply open the can and enjoy it as it is, or add it to your favorite dishes like sandwiches, salads, or pasta. It's a convenient and healthy option for a quick meal. When storing, keep the unopened can in a cool, dry place. Once opened, transfer any unused tuna to a sealed container and refrigerate. It's best to consume it within a couple of days. No special maintenance is required, just make sure to handle the can carefully to avoid any cuts from the sharp edges.