Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Is the heating element covered or exposed? I can't tell by looking at the bottom of the carafe and am concerned about that metal tube on the inside.
Document: Good capacity for my pot of tea, fast heating to boil, automatic shut off convenient, glass carafe let's you see what's going on, nice design, brand I trust for quality. All works well for me.
I was prepared to really like this kettle, having deliberately spent more for better quality, glass carafe etc. I had read one review mentioning the odor but was hopeful that it was an anomaly. It wasn't. The chemical smell when I opened the unit was overwhelming. It apparently comes from some sort of plastic piece which fits into the bottom of the glass carafe.
The kettle is attractive and heats water quickly. It has worked well for three months. Last week-end I used a soft brush to clean the inside. The glass suddenly broke and a big chunk fell into the carafe. I was very surprised since I was careful to use little pressure when cleaning it, and the carafe was warm, not hot.
This means that steam pours out of it when the lid opens, and that also stops it reaching the actual full shutoff boiling temperature, so not only do you get sopping wet cupboards above it, but the kettle won't then shut off, and keeps boiling until dry. You therefore can't leave this thing unattended. Pure rubbish. I wish I could just buy the proper all metal kettles we had when I was a kid years ago. They just worked, and with no plastic poisoning the water. Avoid
This Breville product is very impressive, along with the design and ease of use. I was also concerned with a possible metallic after taste with metal water kettles, so this was a great option. So far, the unit works perfectly. I can heat up only the water that I need, whether it's 2 cups or an entire liter.Here is a rundown of the good and the bad:Good:- Easy to clean- Mostly glass and stainless steel.
Was disappointed by this product as there is definitely plastic and rubber that come into contact with the water. That said, this one of the better electric kettles I tried in terms of exposed rubber and a plastic smell/taste. If you can accept this, then this is a pretty solid product (although expensive). If you're like me and can't stand any sort of plastic taste to your heated water, this might not be for you.
This is not a good choice for those concerned with avoiding plastics.
You'd think someone would get it right. If anyone knows of a better kettle, please feel free to comment on my review. I actually like their metal electric kettles better.
Works great, looks nice but the glass design makes visible the build up that occurs naturally at the bottom. I prefer the stainless steel kind for this reason.
I had Breville kettles before, but this is the first time it happens to me. I've noticed today a rusting circle inside of the kettle after about 1 week of usage. I wouldn't expect that from a $100 kettle. Looks nice, works great, but rusting is a deal breaker.
Answer: At the bottom it's a flat stainless plate, most of the element is covered, except for a small stainless rod that goes up the inside of the carafe near the handle side.  I've had it a while now, and I haven't had any problems with it, it works well, easy to clean!