For tough grinding such as turmeric, masala or idli batter - use mixer grinders with wattage rating 750 Watts or more. • Please allow the motor to cool for some time between product uses. Most MGs come with overload protection which automatically turns off the motor in case of overheating. • Burning smell during first few usage is normal due to varnish coating on motor and will stop after few usage cycles.usha mixer grinder 500w heavy copper motor with overload protection. The finest grind quickly, mixer come with 3 steel jar for all type use . company give 2 years onsite warranty