If I put together my own pot of soup with primal ingredients and then can them, then they are still primal. Same as making tomato sauce and can it, or stew and can it, or cutting, blanching, and canning asparagus, etc. So, I don't see how canning food is necessarily non-primal.
Unless canned food is by principle non-primal. Then canned salmon and coconut milk would also be non-primal. And I am sure that most people here would be happy to say that canned salmon and canned coconut milk are primal foods.
I think it would be more important to check ingredients.
Female, age 51, 5' 9"
SW - 183 (Jan 22, 2012), CW - 159, GW - healthy.
Met my 2012 goals by losing 24 pounds.
2013 goals are to get fit and strong!