Endoscope reprocessor

An endoscope reprocessor, comprising:

• an endoscope housing in which an endoscope is housed;
• a medicinal solution tank that is communicated with the endoscope housing and in which a medicinal solution is stored;
• a pump that transfers the medicinal solution from the medicinal solution tank to the endoscope housing;
• a first adjustment portion that increases a reaction rate of the medicinal solution in a state in which a concentration of the medicinal solution is lower than a first reference concentration;
• and
• a controller comprising hardware, the controller being configured to:
• compare the concentration of the medicinal solution and a second reference concentration that is lower than the first reference concentration;
• and
• drive the first adjustment portion where the concentration of the medicinal solution is higher than the second reference concentration;
• and
• a notification portion that produces a warning, wherein in a case where the concentration of the medicinal solution is lower than the second reference concentration, the controller drives the notification portion;
• wherein the first adjustment portion comprises one of a heater that raises a temperature of the medicinal solution to a predetermined temperature, a vibrator that causes the medicinal solution to vibrate inside the endoscope housing or an internal pressure regulator that reduces an internal pressure of the endoscope housing in an airtight state.