How is alcohol used as a cake preservative?

While alcohol can be added to cakes for flavor and to help with moistness, it's not a primary preservation method. Here's why:

* Alcohol Content: The amount of alcohol added to cakes is minimal and not enough to inhibit microbial growth.

* Other Preservatives: Cakes primarily rely on other preservatives like sugar, which draws water out of bacteria, and sometimes, added chemicals like potassium sorbate or sodium benzoate.

Alcohol's Role in Cakes:

* Flavor: Alcohol can add complexity and depth to the flavor profile of cakes.

* Moistness: Some alcohols, like rum or brandy, can help retain moisture in the cake, leading to a softer texture.

Important Note: Cakes are generally perishable and should be stored properly to prevent spoilage. Using preservatives alone is not enough to guarantee a long shelf life.