Hi people, I'm doing an AP European History project, and I am in dire need of help for finding primary sources, in other words, books or films on the history of/ the art of Food Preserevation. If I can get some help, Thanks.

I can't help much, but I can tell you to check what botulism is.

Its an illness that comes from bad ways to preserve food and can be some sort of lead. At least for more reasons why we can't just seal everything and pack to conserve that its an actual task.

Canning, pickling, confit, curing, smoking.
Remember FAT TOM: Food, Acidity, Temperature, Time, Oxygen, Moisture