Is burning foil a non-legacy?

Yes. Burnt foil has been listed in the Notice of the State Council on the Announcement of the Second Batch of National Intangible Cultural Heritage List, and has been widely protected and inherited. Burnt foil is one of the traditional Chinese handicrafts, which is made by hand by engraving or drawing patterns on copper, silver and other materials, and then by welding or firing. Burnt foil is regarded as one of the treasures of Chinese metal crafts because of its exquisite skills and unique artistic style. According to the criteria of UNESCO's Representative List of the World Intangible Cultural Heritage, intangible cultural heritage refers to the intangible cultural heritage that is representative, unique and orally transmitted in the process of historical development and social inheritance, and has the significance of cultural identity and social participation. Burnt foil, as one of the representatives of traditional Chinese metal crafts, used to be quite famous in history, and also has certain inheritance value, cultural inheritance significance and local characteristics, which can be regarded as a kind of intangible heritage.