I don’t see why e.g. canned green beans or peas couldn’t just be packaged as they are. Is it a food safety thing? Because it adds a lot of weight to each can…
(I hope the flair fits… I wasn’t sure where to put it as I’m not sure if it’s a biological or an engineering problem.)
In: Engineering
1) the liquid prevents the stuff inside from getting bashed up
2) syrup add sweetness and preserves
3) it helps maintain pressure in the can so it does not crumple or burst.
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