Integrated scales and timer Let the Bosch OptiMUM MUM9GX5S21 Stand Mixer make food prep easy. Thanks to the integrated scales, you can weigh the ingredients from your recipe directly in the bowl - this saves you time, plus there's no need to clean another bowl. And with the built-in timer, you don't have to check the kneading time yourself. Large capacity The 5.5-litre stainless steel bowl is ideal for mixing large batches of ingredients. And with the mixer's 7 speed settings, you can always choose the right speed for every type of dough. Smart technology The mixer uses 3D Planetary technology - this means your dough is always mixed into the perfect consistency, as if it was kneaded by a hand.The Smart Dough Sensor makes sure your dough is mixed constantly in every situation, even with large and heavy mixtures. Easy to clean Changing or removing mixing tools is a breeze with the EasyArmLift feature. And thanks to the mixer's stainless steel body, keeping it clean requires very little effort.