The trick is to just make sure the jars are full. Leave some head space at top of jar, I leave about a jar ring size space. I add a springle of salt and that is all I add. I cut steak size pieces bones and all. If I do smoke salmon, I only smoke for 2-3 hours then can. Never had anyone not finish eating a can. Have to remember whatever you add to can the flavor will be eternified so too much salt/vinegar or smoke can be too much for some people's taste.