About the iron kettle .
Q. "There is something like a large red spot around the middle of the inside. It seems to be increasing day by day. Is it okay?"
A. Even if you use the tetsubin according to the instructions, red spots may appear on the inside.
However, do not wash the inside of the iron kettle with a scrubbing brush, do not touch it, just rinse it.
The red spots are rust, but you don't have to worry about them as they appear on any tetsubin. If you continue to use it, the inside will become whitish. This is what is called a hot film. It depends on the frequency of use, but it is said to be a guideline for a month or a few months at the earliest. In this way, it can be said that it has grown in a state that is resistant to rust.
If you have any questions or concerns about iron kettles or other products, please feel free to contact us using the inquiry form .
Middle ground