I can tuna in my jars regularly; you need to: . . .
get a scrubbie and scrub the inside of the jars. First, if you have one, run the jars through the dishwasher, and make sure your water to the washer is HOT by running hot water to the sink then immediately turning on the dishwasher.
If the jars are still smelly (I have never had them still be smelly) and /OR they still have residue (this is what happens to me) you need to fill the jars with hot water, let them soak briefly and then hand scrub them out with a scrubbie. If you cannot get your hand into the jar, put the soapy scrubbie into the jar, scrub as well as you can with your fingers and then use the handle of a wooden spoon to scrub out the places you cannot reach. Of course you must use a detergent, something that will dissolve oil, for doing this; some times you need more detergent! And you need to scrub, scrub, scrub.
If the jars' residue seems especially obstinate, fill with HOT, HOT soapy water and let soak for a longer time, maybe a couple of days (highly unlikely)..
IF you are re-using the lids for on-the-counter storage, stop, as you may never be able to get the smell out of the sealing compound!--and this may be where most of your smell is coming from.
Works for me. smileys/smile.gif