By gaaaamoooom
Sweet potatoes are low acid, so it isn't safe to can them in a water bath. That's why all the recipes you find tell to can them under pressure. I'm sure someone someplace did it at some time, but it's not considered safe.
googled this info for you....
http://www.astray.com/recipes/?show=Canning%20sweet%20potatoes
sounds interesting!
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