The problem with determining the age of the offerings is that many items are preserved well beyond what's reasonably possible. Highly perishable foods and snacks remain edible long after the fact, likely due to the Moon Warps, and the only signs of life we've encountered were either more feral beasts or traps and weapons produced by those who seek to hunt us.

[There's little sense in sugarcoating it, really. He ought to know what he's getting into, so he can adapt accordingly.]