The only dating advice I can offer is you gotta write it on the label, otherwise Health Inspectors will mark you down for unlabeled open bottles and shift managers will flip. Also, expired orange juice is disgusting and will explode if shaken.
@chalicotherex.bsky.socialOnly dating advice i can offer is that that old carbon in solution in river water is absorbed by fish and then enters the bones of people who eat a lot of fish. Radiocarbon dates measured on the bones of these humans might come out too old, and a lot of Soviet era finds have never been calibrated