Kitchen mixer grinders are noisy primarily due to the mechanical processes involved in their operation. The noise is a result of various factors working together:
Motor Operation: Mixer grinders are equipped with powerful electric motors that drive the blades to grind, blend, or chop food items. The motor generates mechanical vibrations and noise during its operation, especially when operating at high speeds or under heavy loads.
Blade Rotation: The blades inside the mixer grinder spin at high speeds to process the ingredients. This rapid rotation generates aerodynamic noise as the blades encounter the air and create turbulence.
Impact and Friction: When grinding or blending hard or coarse ingredients, the blades impact the food particles, and the friction between the blades and the food creates noise.
Material of the Jar: The material of the mixer grinder's jar can also affect the noise level. Metal or hard plastic jars can amplify the noise compared to more sound-absorbent materials like glass or softer plastics.
Design and Construction: The overall design and construction of the mixer grinder can influence noise levels. A more compact and enclosed design might reduce noise compared to an open or less insulated design.
Manufacturers try to reduce the noise level of mixer grinders by using better insulation, improving motor and blade designs, and optimizing the overall construction. However, since the mechanical processes inherently produce noise, it is challenging to eliminate it entirely.
If noise is a concern for you, you can consider using the mixer grinder during non-quiet hours or opt for models with noise reduction features or quieter motors. Additionally, handling the appliance with care and using it correctly can help reduce noise and ensure a longer lifespan for the mixer grinder.