Same with (bottled) water. The same water that was around even before dinosaurs digested it, also has an expiration date. I assume it has to do with law: everything considered to be a food has to have an expiration date printed on it, no matter how ridiculous it seems.
If we’re talking about ignoring a date printed on the package, salt. Dunno why it had a date printed on it at all.
If we’re talking about something that does eventually go bad, it would be some other spice that only rarely gets used, dunno which one though.
If we’re talking about something actually considered perishable, eggs.
Same with (bottled) water. The same water that was around even before dinosaurs digested it, also has an expiration date. I assume it has to do with law: everything considered to be a food has to have an expiration date printed on it, no matter how ridiculous it seems.
I could see that having to do with the plastic bottle degrading.
Salt: in the ground for millions of years.
Mining company: dig that up and slap an expiry date on it