Why is lemon juice added to peach or apple pie?

Lemon juice is often added to peach or apple pie for a few key reasons:

* Enhances flavor: Lemon juice adds a bright, tangy flavor that complements the sweetness of the fruit and the richness of the crust.

* Balances sweetness: The acidity of lemon juice helps to cut through the sweetness of the filling, creating a more balanced flavor profile.

* Prevents browning: The citric acid in lemon juice acts as a natural antioxidant, helping to prevent the fruit from browning and turning brown during baking.

* Improves texture: Lemon juice can help to thicken the filling by reacting with the pectin in the fruit, resulting in a smoother and more consistent texture.

While not always necessary, the addition of lemon juice significantly improves the overall flavor and texture of the pie, enhancing the overall experience.