The old white skin of Boshan pastry can be purchased at Jingdedong pastry shop in Xiye Street, Boshan. This is one of Boshan's time-honored pastry shops, which was established in 2002 and has a history of 20 years. They sell all kinds of cakes, including traditional Soviet-style moon cakes, crispy white skin, handmade five-kernel bulk cakes, honey food, jujube paste rolls and so on.

If you need more specific location information, you can go to the local commercial street or food street to ask.