Interesting facts about canning (food)

Did you know:

• The art of canning only dates back to 1809?  During the Napoleonic Wars, the French government was looking for a way to preserve food for its soldiers.
• Botulism can result from eating improperly canned foods.  It requires a low acid, low oxygen environment.
• The sale of canned goods goes up during recessions, due to a phenomenon called "cocooning".

http://en.wikipedia.org/wiki/Canning

http://en.wikipedia.org/wiki/Cocooning