Parchment paper vs. wax paper for baking
A general rule is that wax paper is good for cold food items while parchment paper is best for hot items. Although it is okay to use wax paper to line a cake pan where it won’t be exposed to the heat, but rather completely under the moist batter, it is typically recommended to only use parchment paper when heat is involved.
You may want to use wax paper when you are preparing for baking, though. It can help keep your countertops clean when placed on top of them as you knead dough or roll out a pie crust. You can even use wax paper to sift dry ingredients or put unused ingredients back into their original container.