I also use a Luhr Jensen Big Chief. For canned smoked fish, I brine the fish, lay them out for the pellicle to form, then put them into the smoker for two (sometimes three, for thicker fillets) pans of smoke. They come out of the smoker about half cooked and mushy. Then I put the chunks into 250 ml jars with a quarter teaspoon of Hy's Seasoning salt without MSG, wipe off the rims, put on the (HOT) lids and rings, and process for 90 minutes at 10 pounds pressure. Smoked canned salmon keeps for at least three years, and the canning drives the smoke flavour through every molecule of the fish. I mostly serve it, entire jar contents including liquid, mixed with a couple tablespoons of mayo and/or cream cheese, mixed well, and served on crackers like Triscuits.
Many folks have said to me that it is the best smoked salmon they ever ate. (and it works well for farmed steelhead, char, whitefish, pike, etc)
Doug