Food Preservation: 100 Years of Developments

[andrewchang]

Does anybody have any information on developments in food preservation in the past 100 years? I need to make a poster on it, but I can't seem to find any dates so I can make a timeline.

I've googled "food safety" "food preservation" etc., but all the sites have more information on the actual substance as opposed to the dates.

Thank you.

 

[PPonte]

Drying and freezing are the oldest methods of preservating food. Some other and more recent methods are: vacuum packing, curing, sugar, irradiation...

See- http://en.wikipedia.org/wiki/Food_preservation , you won't find direct information but it is a good starting point.