5 ways to preserve food without refrigeration

A great overview of the top methods to keep food edible and store it safely without refrigeration. 

http://www.treehugger.com/slideshows/green-food/5-ways-preserve-food-without-refrigeration/

This is a companion discussion topic for the original entry at https://peakprosperity.com/5-ways-to-preserve-food-without-refrigeration/