I know exactly how you feel! Deer got my green tomatoes this year. Very few left for salsa for me.
I've never heard of this! It sounds good. Can you share a recipe?

Why didn't I think of that!!! The pesky voles don't bother my garlic rows, but they sure damaged one end of my cherry tomato row. That's it, pests! I'm going to put garlic on the edges of my cherry tomato row!
A water bath canner is fine for acidic foods, like tomatoes and fruit products. A pressure canner is needed for non-acid foods like beans and meat. Ball has several good books with directions and recipes.
Gotta trot out my canning story...
A friend told me that he had a friend who liked to wander around old cemeteries and do research on old family names. He found several graves of people with the same family name that all died within a few days of each other. Intrigued, he looked up old newspaper reports in a local library. They'd all died from food poisoning at a family reunion.
I said, "Canned beans, I'd bet." Yup.