This is so gross and I am sure it would be hard on the mixer. If you own a Kitchen Aid mixer, Artisan bread baking shows you how to clean it up and grease it to make your mixer last longer.

 Greasing a Kitchen Aid Mixer

http://artisanbreadbaking.com/ka_greasing/

KitchenAid KSM75WH Classic Plus Tilt-Head 4-1/2-Quart Stand Mixer, White

KitchenAid 9-Speed Digital Display Hand Mixer candy apple red – With (Free Dough hooks, whisk, milk shake liquid blender rod attachment and accessory bag) Candy Apple Red