How come my apple pie tastes bitter?

Overcooking the apples can lead to a caramelization process that can result in a bitter taste.

2. Apple skin

Apple skin contains tannins, which can contribute to a bitter flavor, especially if there's a thick layer of the skin in the pie.

3. Bad apples

Using damaged or bruised apples can result in the release of a compound called amygdalin, producing a tart or slightly bitter taste.

4. Apple variety

Some apple varieties have a naturally tart or bitter flavor profile. Common tart apples used for pies include Granny Smith, Bramley, and Blenheim Orange.

5. Added lemon juice

Lemon juice is generally added to apple pies to prevent browning; however, if overdosed, it can impart a more bitter flavor.

6. Overcooking the cinnamon

Cinnamon is a warm spice commonly used in many desserts, including apple pies; however, excessive or prolonged heating can make the cinnamon release bitter oils.

7. Burnt crust

An excessively heated oven or uneven heating can burn the pie crust, and that bitterness can seep into the filling. Check and make sure that your oven isn't overly hot, that baking pans aren't touching the walls inside the oven, and that your pie tin (especially if made of glass or ceramics) has been preheated in the oven first to ensure even heating