They were then adopted and further developed by the Japanese into practical as well as decorative handicraft items.
They symbolise the everlasting strength and unity of the world. Through special chemical treatments, impurities are removed from the cast iron during the productive process. A coating of misty black enamel is then applied to help prevent the development of rust. As water is boiled, trace amounts of iron in the water from the teapot provides an iron supplement that contributes to human health.
Small pots should only be used to serve tea. They should not be used to boil water directly.
Instructions for use:
Before using, fill the teapot with boiling water and then discard.
After each use ensure that the entire teapot is clean and dry to prevent the development of rust. We recommend that tea should not be kept in the teapot overnight.
In the unlikely event of rust, the pot can still be used. After cleaning the rusted area with a soft brush, make a strong black tea with boiling water. The tannic acid from the tea will naturally react with the iron producing a black seal, covering the rusted area. This will also prevent the re-occurrence of rust. Rust from the pot is non-toxic which makes the teapot safe to use.