Coffee grinder and coffee grinding method

A coffee grinder comprising:

• a grinding tool for grinding coffee beans,
• a motor for driving the grinding tool,
• a stall detector for detecting a stall condition of the grinding tool and/or of the motor, and
• a reversal unit configured to:
• pause a rotation of the grinding tool and/or of the motor for a first predetermined amount of time when the stall detector detects the stall condition,
• after the first predetermined amount of time is over, reverse a direction of rotation of the grinding tool and/or of the motor for a second predetermined amount of time, and
• resume a preferred direction of rotation of the grinding tool and/or of the motor after the reversal of the direction of rotation is complete.