The fire elephant handmade ancient health pot has no coating. Using advanced gas and nitrogen technology, the pot body has no chemical coating, which is healthy and environmentally friendly. Coating is a solid continuous film obtained by one-time coating, which is a thin plastic layer coated on metal, fabric, plastic and other substrates for protection, insulation, decoration and other purposes. The coating can be gas, liquid and solid, and the type and state of the coating are usually determined according to the substrate to be sprayed. There are different names according to the type of paint used. For example, the coating of primer is called primer layer, and the coating of topcoat is called topcoat layer. Generally, the coating obtained by coating is thin, about 20~50 microns, while the coating with a thickness of more than 65438±0mm can be obtained by thick slurry coating once.