Who determines the appropriate expiry date (or “expiration date” in American English) of a product (particularly a food item)? Have you ever wondered if your can of Coke will remain bubbly for another year as indicated on the expiry date? Well, I have. And I tried to dig up some info on this topic:
Having researched these resources, it seems to me that the expiry dates tend to be on the conservative side. Are manufacturers erring on the side of caution or is that a legal requirement? Is there some kind of magic formula or is it just guesswork for different product types?