We buy Albacore Tuna off the boats in Humboldt Bay and pressure can it every two or three years. The Tuna is caught by hook and line, landed on the deck and then they slash the gills and let them bleed out for a few minutes and then toss them in the hold and flash freeze them as the meat turns soft rapidly. We put them in the freezer until a couple of days before canning. I set up a table out doors, using a oil cloth cover I cut up the fish which is a learning process because the guts are still intact and you want to avoid tainting the edible parts. Twenty pounds of Tuna yields about ten pounds of fish.
As I get some loins ahead my wife takes it in the house and packs it in 1/2 pints that have been sterilized in the dish washer, adds a bit of salt and takes a lid out of a pot of hot water, puts it on the jar and tightens a band and by then I have a canner going on a heavy duty camp stove set up in the garage. Then I cook it for 90 minutes at 15# AFTER the temp comes up. While that is cooking we ready another canner and continue. We used pints when the kids were home and We do all this outdoors as the smell in really really bad. Our newest canner is a All American with the top clamps to secure the top. The seal is metal to metal with no rubber gaskets to give you fits.
We also can fresh ocean caught Salmon when we get it but it has been scarce the past few years. At one time my wife put up hundreds of jars of vegetables and fruit but the kids are on their own and work so they go more for processed quick foods and our appetites have waned as we age so she uses fresh veggies. Has anyone else noticed that not only is canned foods going up in price but the size of the can is shrinking enough to throw you off on a recipe...
We have the All American pressure canner as well and love it.
Yes, food prices have been going up and package size has been going down.