Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Is the jar glass or plastic? I prefer glass.
Document: My solution is to lay a clean washcloth over the top.- Thin plastic jar/base. It hasn't failed or cracked yet, but it doesn't feel very durable. Time will tell.- Preprogrammed &#34;Smoothie&#34; button doesn't handle ice well. Or thick yogurt. Or frozen fruit. I have to constantly thump and jostle it to try and get it to blend. Again, preprogramed, hands-off operation defeated.
I am currently in love with my hamilton beach blender. Before it just sat unloved and neglected. Ever since i used a mason jar instead of the original glass pitcher that comes with it i have been using it non stop. Before it was just way too loud to use i was afraid i would damage my hearing. Now i can blend with ease and its much easier to clean up.
The blender worked fine, but not significantly better than either of the $20 blenders I have bought in the last decade. I was a bit disappointed that after spending three times as much, I didn't see much increase in performance.More disappointing was the fact that two of the plastic parts broke within two weeks of use. The grooved plastic sleeve that holds the jar onto the base, as well as the coupling that attaches the blade to the base, both developed cracks that caused the blender to leak everywhere.
This is a wonderful blender. The glass jar is a little heavy, but so so easy to clean. Love how easy to clean the flush buttons.I have since had an opportunity to use this blender many times since I first wrote the above review. It is a fantastic little machine. So easy to store away too, because the base is lightweight and I store it side by side with the glass jar. Storing it away disassembled makes it easier for me.
I used LOW speed and let it run for a bit to make my smoothie and it blended as well as the Kitchenaid! No problems there. There wasn't any jumping around; the blender stayed still. I took the pitcher off the base and not a drop of liquid underneath! However, when I went to POUR what I blended into my glass, as you tilt the jar to pour, I noticed some liquid that actually ran out from the bottom blade onto the counter. Not sure what that's about!
Basically, the blade sits right down into the plastic piece and then the jar sits down into the plastic piece securing the blade  and it screws onto the plastic. Now you have a total of two pieces, the jar/lid and the base. It's really super easy but I'm not sure how well that plastic piece that fits on the base will hold up over time!The blending is really well! It is noisy but it's a smooth type of noise.
Stainless steel base is a plus here too.- Sturdy. Stainless steel, thick glass. The only questionable bit would be the lid, but it seems like a flexible yet strong plastic - if it breaks, I'll update the review.Cons:- Loud. It's a kitchen power tool, seems like the design was focused on performance and maintenance, not so much on sound dampening. Not an issue so much for us, but could be for those with close neighbors.
It also has a unique "Smoothie" button that alternates between various speeds and the pulse setting to insure a creamy, smooth shake.Functionality: The Smoothie Smart includes a heavy and sturdy glass pitcher. The power cord stores into a solid steel base. The plastic lid fits tight and can be a little hard to adjust. Clean up is very easy and the medium size is great for any space, including a dorm room.
This blender has broken after spiratic use over 2 months. The plastic in the motor broke. It coudln't handle frozen fruit very well. And it was very loud. I can't recommend this to anyone.
Maybe instead of a spare jarnut I should get a "spare" blender. Too bad they are plastic because the blender does just what I wanted, making smoothies. I find it loud but not much more than any kitchen appliance, and it does blend frozen fruit and ice well. I would have rated it 4 or 5 stars if it wasn't for the plastic part that doesn't seem to last long.
Answer: The jar is glass. It's a very nice heavy jar. Unfortunately, it's the only nice thing about this blender.