How long does home-canned food last?
Funny how so many innovations in food preservation can be traced to armed conflict. But it’s no wonder why. Une armée marche à son estomac, as Napoleon famously said. A large force sitting still will consume every edible resource within reach in two days’ time. Historically, keeping such an army from starving has required either long supply lines or on-the-go, off-the-land foraging. But there are drawbacks to each. Long supply lines make easy targets for the enemy (see Napoleon’s retreat from Moscow), and foraging has a way of ruining civilian morale (ask anyone in the South about Sherman’s March to the Sea…150 years later at they’re still P.O.’d about it). But if you can take your supplies with you, you have a tremendous strategic and tactical advantage. Such was the challenge that faced military commanders around Napoleon’s time. The rise of nationalism and national conscription, combined with advances in industrial-scale production, created armies of a size the world had never see
