telling you the exact temperature.
The person doing the ironing had to rely on experience.
How Did It Work?
The basic principle was surprisingly simple.
First, charcoal was heated until it was hot enough to produce substantial heat.
The hot charcoal was then placed inside the iron’s chamber.
The lid was closed, helping contain the fuel while allowing the necessary airflow.
As the charcoal burned or smoldered, it heated the surrounding metal.
Eventually, the bottom of the iron became hot.
The user could then place it against clothing and move
