Importance of Quality in Baking Cups A PET Film Baking Cup plays a crucial role in baking by ensuring cupcakes and muffins hold their shape, bake evenly, and present beautifully. However, the market offers a wide range of quality, and choosing the wrong cup can lead to uneven baking, sticking, or a poor appearance. Knowing how to quickly distinguish between high-quality and low-quality PET film...