Home Canning Guide from the USDA
Turns out the USDA put out a PDF guide to safe methods for home canning in 2009. The booklet is sub-divided into eight categories, each a separate download, with colour photos. Since I (and most of the canning sites I follow) refer to it often, I thought it best to bookmark the page for future reference:
USDA Complete Guide to Home Canning, 2009 revision »
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