We all know that the motor is the heart of any mixer grinder so always check the wattage of the motor before buying a good quality mixer grinder. The perfect wattage of the motor for a good mixer grinder is 750 watt that will work on 240-volt voltage. The built quality of the jars should be good and jars should be made of high-quality stainless steel. Please make sure that your mixer grinder should come with at least two or three different types of jars. The speed varying system is also necessary for a good mixer grinder because when you are making some juice then the speed of the mixer should be less in comparison to other grinding or mixing operations.