How long a apple pie can stay good after expiry date?

It's impossible to give a definitive answer on how long an apple pie can stay good after the expiry date. Here's why:

* Expiry dates are guidelines, not absolutes. They typically refer to peak quality, not safety.

* Storage conditions matter significantly. A pie stored properly in the refrigerator will last longer than one left at room temperature.

* The ingredients and preparation method affect shelf life. A pie made with fresh ingredients will likely have a shorter shelf life than a store-bought pie with preservatives.

Here are some general guidelines to assess the safety of an apple pie after the expiry date:

* Smell: If the pie has a sour or off-putting smell, it's likely gone bad.

* Appearance: Look for mold, discoloration, or signs of spoilage.

* Texture: If the crust is soggy or the filling is watery, it's best to discard the pie.

* Taste: If it tastes off, don't eat it.

It's always better to err on the side of caution. If you have any doubts about the safety of your apple pie, it's best to throw it away.