Contents
The Enigma of Silver Oil:
The term “silver oil” refers to a specific type of sheen that can be observed on the surface of some Jianzhan. This lustrous effect is not an application of any external substance but a natural result of the firing process. The silver sheen is caused by the crystallization of iron oxide within the glaze, creating a metallic-like appearance that can range from subtle to striking.
How is Silver Oil Formed?
The formation of silver oil is a complex process that depends on various factors, including the composition of the clay, the glaze, and the kiln’s atmosphere. During the firing, the high temperatures cause the iron content in the glaze to react, leading to the formation of iron oxide crystals. These crystals reflect light in a way that produces the silvery effect, which is enhanced by the natural variations in the glaze.
The Significance of Silver Oil:
In the world of tea, the presence of silver oil is highly prized. It is considered a mark of quality and authenticity, indicating that the Jianzhan has been fired at the optimal temperature and with the right balance of oxygen and reduction. The silver oil not only adds to the aesthetic appeal of the bowl but also reflects the harmony between the craftsman’s skill and the unpredictable nature of the kiln.
Caring for Jianzhan with Silver Oil:
Owning a Jianzhan with silver oil is a responsibility that comes with its own set of care instructions. To maintain the integrity and beauty of the silver oil, it is essential to clean the bowl gently and avoid using abrasive materials that could scratch the surface. The bowl should be washed with soft cloths and mild detergents, and it is recommended to use the bowl regularly to enhance its patina over time.
