On Nov 30, 4:57*pm, "Ed Huntress" wrote:

Now, corn or soy beans...at least you could eat them in a pinch. d8-)

Ed Huntress

Spam lasts "indefinitely", though the "flavor gradually declines".
http://www.hormelfoods.com/faqs.aspx#can4

IOW it's fine until crushed by the next Ice Age.