Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: This KitchenAid blender has a polycarbonate jar?
Document: This blender is "the bomb". I vascillated over the polycarbonate pitcher. However, it is light and easy to clean. The blender looks classy on my counter and most importantly, it makes the best milk shakes, frozen drinks and smoothies ever. I'm so happy with my purchase that I've been checking out other KitchenAid appliances.
We almost gave this a 4-star review because of the polycarbonate jar, but it's actually very nice! The one-piece, leak-proof design makes it a breeze to clean. The ice crushing mode is superb; using an electronic "pulse" method, the ice is crushed uniformly and frothy smooth. Absolutely perfect for smoothies!
This is a great blender. My smoothies have never been so smooth. :)  The large jar makes up enough smoothie that I can freeze enough for several days. The only problem is the jar is plastic. After about 6 smoothies the blade started to wobble and it would not hold thin liquids. I called KitchenAid. She explained there is a pulse mode that I should use when I begin with my frozen strawberries. She gave me no problem and is sending me a replacement jar for free.
My last blender cost less than half of this one. It wasn't the best blender, but it held up to heavy use for many years before I decided to upgrade to the KitchenAid. Big mistake. The motor on the first one I received smoked terribly, and had to be returned. The second one did indeed blend more smoothly, quietly and quickly than my cheaper model, but my happiness didn't last. After maybe three months I removed the jar from the dishwasher and noticed it was cracking all over.
This relatively expensive KitchenAid model is shockingly good. Briefly, it is powerful enough to chop up the frozen strawberries without hesitation, and the shape of the jar creates a 'vortex' that mixes everything quickly. With this model, I throw in bananas, berries, frozen strawberries, and milk, and then push 'liquify.' In about 15-20 seconds, I have perfect smoothies. I am pleased with the power of the unit and the absence of leaks.Minor updateThe cheaper KitchenAid blender that I returned was about 2011.
I use 6 days a week blending one full jar of fruit smoothie. One thing seems to help the jar last fews weeks more, use pulse mode to break up chunks 1st and add ice slowly. Thank you KitchenAid, but a design change would make good business sense.
I will also add that I hand wash the blender jar, and it has not shown any sign of leaking. I waited 2 months for it to be shipped to me, but the price was under $100, so very worth it. The base is very heavy, and easy to clean. It also looks very nice on the counter.
In the meantime, I can still make my smoothies since I make it with yogurt. Only very thin liquids run through and I will have a new jar soon. I would buy this blender again because it is great blender. It just needs a bit of extra care when starting up frozen drinks, etc.
After reading the great reviews, we registered for this blender. It was a great step up from the cheap $30 blender I had in college that smelled like burning plastic every time you used it, but it has been just under a year and our blender is already broken. The blender still runs but is jerky and now it too smells like burning. We did not have any of the problems with the jar that other people have mentioned.
After owning an Oster blender for 20 some years, we all thought we should replace the old machine. When the KA arrived we were so impresed, and we were joking that we did not know how much better it could have been by getting a newer model... Until it broke down. The jar leaked and somehow the liquid got inside the motor and it stopped. liquid dried out and blender started working fine.
Answer: Yes and it scratches.