Why does a gourd with a natural lacquer inner coating need to be "broken in" (Kāi Hú)?
Natural lacquer is a sap collected from lacquer trees and applied to the inner wall of the gourd through traditional craftsmanship, forming a strong, waterproof, and heat-resistant protective layer. Although natural lacquer itself has excellent antibacterial, anti-mildew, and acid/alkali-resistant properties, a newly finished lacquered gourd may still retain slight odors from the lacquer or wood, or a mild astringent feel before the lacquer surface has fully settled. The purpose of "breaking in" (Kāi Hú) is not to activate the lacquer, but to use mild liquids (such as tea water, warm...