A food processing machine having a base and a cylindrical jar lock extending upwardly from a top surface of the base. A jar assembly has a jar and a collar that extends downwardly from the jar. The collar is adapted to fit circumferentially around the cylindrical jar lock. A plurality of locking tabs extend radially inwardly from the collar. The locking tabs engage with the cylindrical jar lock and prevent vertical movement of the jar while allowing rotational movement of the jar and linear movement of the jar with respect to the base in the xy-plane. The cylindrical jar lock is optionally spring-mounted to the base to provide dampened movement in the vertical direction of the cylindrical jar lock with respect to the base.