You overhear some folks talking about canning tuna and how terrific home canned tuna tastes. You think to yourself, "I can do that!" You can do that. Just be sure you're doing it safely. When canning meat, fish, poultry and vegetables, a pressure canner is a must. It's also important to be sure you're using the most current processing times and make the necessary adjustments for altitude. It is only safe to can fish and fish products in pint and half-pint jars. Check out the publications at http://extension.oregonstate.edu/douglas. Look for the canning fish section for lots of useful information. You'll …