It is a machine that washes obstinate oil dirt that has adhered to the die after the baking.
The liquid named Rindafresh is put into the machine with the baking die.
Turn on the switche and adjust the temperature to about 60 degrees.
Most oil dirt can be taken about within 2-3 hours though it depends on dirty condition.
Finish washing it in clear water.
It is a recommended machine to keep the baking die clean.