History of Preserving Food - Episode 283

Food preservation has been around for many centuries, and taken on various forms. How else do you think early man was able to keep all of that t-rex meat fresh?! We look back on when food preservation began, how the forms have changed over the years, what the differences are between the different food preservation methods, when you should use which method, and, of course, the science and chemistry behind what is happening to your food when you preserve it.