Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: what is the difference between white and white on white for the kitchenAid artisan mixer
Document: I received the KitchenAid Artisan 5-Quart Mixer in Imperial Gray as a gift and it is everything I hoped. I used the mixer to bake hundreds of cupcakes, filling, and buttercream frosting for a wedding and it was always consistent and never failed me over 20+ hours of prep work.One thing I wish was standard with the mixer was the paddle attachment that has the scraper end on it, rather than the regular paddle that comes in the box.
I've been using KitchenAid products for years now and to be frank, have not been dissatisfied with one of them. The 5 Quart Artisan 325 volt model being reviewed here is no exception. We have quite a few friends and relatives who use this same model and without exception all are delighted with this machine. It is dependable, reliable, mixes well and we personally have had no problems with ours what-so-ever. It does the job we pay it to do and does it well.
Delighted with this product. I went for the artisan kitcheaid over the kenwood because I knew my mixer would have to sit on the counter due to their heavy weight and if it has to be on show - the kitchen aid looks won hands down. I bought it from the states and after paying shipping and for a transformer to convert it to eureopean voltage, it was stil cheaper than buying it in Ireland.
I am not sure how I have survived so long long without this product. I previously had a sunbeam mixer which was also good, but not as user friendly. The KitchenAid is definitely durable and easy to clean. I would recommend this to anyone who bakes often.
I am a newbie to this joy of cooking thing, but I gotta tell you, this KitchenAid mixer makes me feel like a pro. I purchased the Imperial Gray because it has a flat durable finish and the lights in my kitchen don't bounce back in my face. Gonna go make some cornbread now.
I grew up using my mother's KitchenAid stand mixer then used my sister's when we lived together. I made due with a hand mixer for awhile, but once you use a standmixer you just can't go back to a hand mixer! I finally saved up the money (plus some Christmas money) and invested in my own standmixer! Can't go wrong with this stand mixer.
This purchase was the result of a dismal experience trying to mix up bread dough with a cheapie stand mixer bread hook. Heard so many reports of the miracles of Kitchenaid mixers, that we decided to use an Amazon gift card on one of our own. I have never been particularly interested in cooking, (hubby is the chef in the family)  but we are on a quest to eat more healthy and close to the earth foods.
Perhaps KitchenAid was having problems at one time in the past. As far as the machine setting in our bake center as I write this, I have absolutely no complaints and am delighted.Seventh, I note that a number of the more negative reviews here reference machines that do not have the 325 Watt motor. I am not sure of the reason for this but I hardly think that a mixer with a smaller motor should be compared to this machine.
For $30 more, theKitchenAid Flex Edge Beater Fits 4.5 Quart and 5 Quart Tilt Head Mixersis really worth it to allow your mixer to perform perfectly on its own. I was lucky enough to receive the attachment as part of the gift, so have always used it with the mixer, which probably accounts for my bias...In my opinion, if you're going to spend this much on a mixer, buy a KitchenAid.
i have been wanting a Kitchenaid mixer for YEARS. Finally, after borrowing friends and neighbors just about every other month, i purchased this one. it came, and my friends and i had an unveiling party. everyone ooohed and ahhhed over the imperial grey color. it a pebbled satin finish, and is truly striking. i also bought the 5Qt glass bowl which is the one that normally resides with Stella (yes, thats my mixers name) and its just beautiful.
Answer: Mechanically, nothing. Appearance is the difference. With the white mixer you can see the labels, the lock knob, and the speed knob all are black. Whereas with the white on white, those things are all white.