The Thermomix® noise level is dependent on the speed and what contents are inside of the mixing bowl.
It will be louder when starting to chop hard foods such as coffee beans, hard cheese, grains, ice or frozen fruits.
If you need additional assistance please call our Customer Happiness team at: (888) 867-9375 from 7am to 7pm (CST) Monday to Friday, and Saturday's 8am to 5:30pm (CST). Or email them at service@thermomix.us