If I smoke my fish before canning I add a teaspoon of olive oil in each pint . IF im lazy witch is alot I use two thirds tsp. salt, half to 1 tsp. liquid smoke. Either way pack pints tight and leave half to thee quarters head space . Kerr and Ball both have good pressure canning directions for your altitude . My favorite canned any kind of fish recipe is 1pint raw fish , two thirds tsp. salt ,1tsp. Louisianna Hot Sauce .Hard to beat .