why do glass baking pans say to just grease the bottom and not the sides?

Question

this is on a 9X13 pan and the directions for baking a cake.

Answer 1

The reason is that if the sides are oily/slippery, the cake has nothing to grab onto to rise. This happens on some teflon pans too. I do use a glass pan regularly but I always butter & flour all sides and the cakes rise up much higher (do this with cheesecake springform pans too)

Answer 2

Because when you pour the batter into the pan, the food pushes the oil up when you pour it in. It naturally spreads the oil itself--that is why you see oil on the sides of the batter even when you have not greased the sides. Simple physics :)

Answer 3

You only need to grease the bottom so the cake mixture doesn't stick to the bottom. The sides will grow just like any other flour mixture, it rises.

Answer 4

all of my bake ware is glass if you spray cooking spray on it no matter what your baking bottom and sides nothing sticks
easy clean up

they make a cooking spray that has the flour added in it for cake baking i would still do bottom and sides

Answer 5

me personally i grease sides, and the bottom. but i cook with a stone. and that thing is the best cookware ever. its from the makers of pampered chief. good luck on it, but i would spray the whole pan

Answer 6

I agree with the person above