Yes. This can happen in a Thermomix if:
- the ingredients are cooked for too long
- the ingredient mix is not moist enough, i.e. it is too many dry ingredients or does not have enough water
- a thick dish like risotto was not stirred between the recipe steps and thick ingredients settle on the bottom
Burned food can be cleaned from the mixing bowl by soaking in hot, soapy water for 20-30 minutes and scrubbed with a green cleaning pad and/or steel wool.