Lacquer sap taken from the tree is initially a white, milky color, and grows brown and then black as it is exposed to the air. Sometimes vermillion pigment is mixed with the lacquer to produce a red color. The lacquer is then placed under sunlight or artificial UV light to turn the blackening lacquer transparent, allowing the red color to show through; though the production of red lacquerwares is not unique to Ryûkyû, the strong sub-tropical sunshine there is often cited as a key factor making the Ryûkyûs particularly ideal for lacquerware production.<ref>"Shurijô Seiden ha sekai saidaikyû no urushi no ki. Shurijô no shûfuku, fukugen ga dekiru shokunin o sodatete moraitai"「首里城正殿は世界最大級の漆の器。首里城の修復、復元ができる職人を育ててもらいたい。」、Fee nu kaji 南ぬ風 9 (2008/10-12), 4.</ref>
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Lacquerwares are decorated in a variety of ways, including:
Lacquerwares are decorated in a variety of ways, including: