A peanut butter mixer system including: a screw-mixer formed as a continuous rod member having sequential looped coils along a length of said continuous rod member and terminating with a cutting edge; wherein said screw-mixer is powered via a motor and a power source as manipulated by a user-operator to re-mix peanut butter in a provided container. The screw-mixer is powered via the motor and power source as manipulated by a user-operator.