I make two or three dozen muffins a day for various customers. I don't like to use disposable cups, so I grease the pan each time. No matter what I do, after a certain time, my muffin pans end up giving a subtle metal taste to my muffins.
I was wondering what would be the most appropriate material for a muffin mold to avoid this situation. I'd be ready to pay the price for a pan that would last significantly longer... Bug which one should I choose?