What is the structure of McDonald's purple potato pie packaging?

The inner layer is mineral wax paper, and the outer layer is brand packaging box. McDonald's is a large multinational chain restaurant in the world. 1955 was founded in Chicago, USA. McDonald's purple potato pie is a delicious food made of low-gluten flour. The purple potato pie is packaged with mineral wax paper as the inner layer and brand packaging box as the outer layer. Because of its sweet and delicious taste and affordable price, it is deeply loved by consumers.