She said she canned meat, and meat needs the higher pressure.
How long ago did you can it? If it was in the last day or two, I would say dump the jars, boil well, and freeze. Recanning might ruin the texture, I would think.
If it has been any longer--trash it. Not worth the risk, even though the risk is slight. (Be sure to dispose of the food where animals can't get it!)
In the future, read your Ball Blue Book--available where you buy jars, or at Amazon. Or visit this site: National Center for Home Food Preservation
That is the official USDA approved site for canning instructions and recipes. (Also covers freezing and dehydrating.)
There are lots of canning experts here, so use us as a reference, too.