The measuring cup is a cap for the hole in the mixing bowl lid, and prevents heat loss and stops ingredients from spilling out.
You can also use the measuring cup to measure liquids. It has 100 ml and 50 ml markers.
It’s great at reducing noise because it’s made from a material that absorbs sound. It also locks into the lid, which means it doesn’t rattle during food processing (e.g. Dough mode).
The measuring cup stays securely in place, so it will not fall out when you remove the lid. Simply use the handle to remove the lid with the still cup in it. Then turn it over immediately to prevent any liquid from dripping off the lid.