This short 2 or 3 page article is not abut the technology of preservation, but rather about the history of how preservation became so important to civilization.
(click image for full story online)
Although the article does not mention newer technologies such as radiation and pressure processing and does not expand on the science of preservation, knowing the history helps to give a wider view when one considers preservation.
The author ends by saying “Interests have shifted from preserve “because we have to”, to “preserve because we like to.”. This of course applies to the modern richer urban dweller and not poor rural communities.
Its interesting to think that if urban people still had preservation capacity the Local Food movement would be much more successful!