I'm learning to make cakes from scratch and bought two of these 4-inch round pans to make a small layered cake.
After letting my layers cool, I turned one layer out and the cake fell from the pan after a few good raps on the bottom. The other layer was being a bit stubborn so i used a butter knife to separate the cake from the edge of the pan.
After I did that, I noticed some small shiny bits of metal on the outside of the second layer. I have two questions: