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Eggs are a great example of this - they can be good to eat several weeks after their date when refrigerated. Especially if you do stuff like flip them every now

Eggs are a great example of this - they can be good to eat several weeks after their date when refrigerated. Especially if you do stuff like flip them every now and then. All you have to do is put them in a pot of water, and if it doesn't float, you're fine.

bad_username 2y ago
> All you have to do is put them in a pot of water, and if it doesn't float, you're fine. How does that work? Buoyancy is determined by the volume and mass (i.e. density) of the egg, and neither of them changes when the egg goes bad.
- JohnMakin 2y ago
  An egg shell is porous
- Terr_ 2y ago
  As time passes, some of the liquid content escapes through the shell and evaporates, being replaced by air, increasing its buoyancy. Even if the liqud->air change doesn't directly cause spoilage (?) the passage of time at least correlates with both.
rconti 2y ago
We fairly regularly eat eggs that are many months old, but I make sure they aren't floaters at least.
- hi-v-rocknroll 2y ago
  Smell them before you eat them. Floating only means the egg is old, which isn't causal for also being bad.
hi-v-rocknroll 2y ago
Here's how to decode the dates. And a floating egg may still be safe to use. https://food.unl.edu/article/cracking-date-code-egg-cartons https://food.unl.edu/article/cracking-date-code-egg-cartons