Frank Yiannis, the former president of the International Association for Food Protection, gave a talk about the history of food safety at last year's annual meeting; the message was pretty much just that.
2000 BC: Here, quick, eat this food before it spoils [stuff] 2007 AD: Here, quick, eat this food before it spoils
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Not that I care, of course.
2000 BC: Here, quick, eat this food before it spoils
[stuff]
2007 AD: Here, quick, eat this food before it spoils
We've come a long way.