What is the function of lemon juice in cheesecake?

1. Flavor: Lemon juice adds a bright, refreshing citrus flavor that balances the richness of the cheesecake filling. The acidity of the lemon juice also helps to cut through the sweetness of the cheesecake.

2. Texture: Lemon juice helps to create a smooth and creamy cheesecake filling. It prevents the filling from becoming too dense and heavy, and it also helps to keep the cheesecake from cracking during baking.

3. Color: Lemon juice helps to give the cheesecake filling a light yellow color. This is especially important if you are not using any artificial food coloring in your cheesecake.

4. Preservation: Lemon juice helps to preserve the cheesecake and extend its shelf life. The acidity of the lemon juice inhibits the growth of bacteria, which can help to keep the cheesecake fresh for longer.

5. Coagulant: Lemon juice is a coagulant, which means that it helps to thicken the cheesecake filling. This is because the acid in lemon juice causes the proteins in the eggs and cream cheese to denature, which makes the mixture thicker.