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

Input:
Question: Can I use the teapot on glass cooktop?
Document: I was surprised at the functionality of this delicate teapot. I use it daily. Very thin glass, but durable enough to boil water on the medium setting of my cooktop. Would definitely recommend.
This teapot has great visual appeal, but as others have noted, is pretty thin and fragile. The infuser (which I didn't plan on using) also arrived with hairline cracks. I'm sure it would have been unusable once hot water widened them. For everyday use on an electric cooktop, this has held up with careful use and moderate heat at most. However, it's probably ideally used for special occasions or a little girl's dream tea party. Dainty and lovely, it's functional - but fragile - art.
This is one of my favorite things. In the morning I make lemon water and throughout the day I make green tea. This teapot is elegant and it does a terrific job making tea. I love that it is glass, and I can use it on my stove top...which is exactly what I was looking for.
Just as another reviewer reported, the thin glass infuser shattered when unpacking and I got glass shards in my finger. Still thought I would use teapot but after one use the top cracked and broke. Now I guess I could use it as a vase, but do not recommend this for a usable Tea Pot.
I purchased this glass teapot and I love it. It looks great and makes enough tea for a family. I have been searching for a glass teapot and I am happy I found this. It's very easy to use and clean and the handle doesn't burn you hand when you hold it. I recommend it to everyone since it's glass and is much better than any other material.
I've been using this teapot for not quite a month, and I am very pleased with it so far. The teapot itself is beautiful and elegant. I love that the clear glass lets me see exactly how dark the tea is getting, and it's also great for use with flowering teas. The size is not too large for one tea-lover, but plenty big enough for sharing. I was initially concerned that the slits in the infuser would get clogged with tea and prevent water from flowing through, but this has not been an issue for me.
The Grosche Vienna Stove Top Water Kettle is everything I wanted in a "glass teapot" and more. Its large capacity lets me and my friends have cup after cup of tea. The shape of the teapot is so pleasing, and so unusual, that I keep in on the table as a decoration when not in use -- which is not very often since I use it every day. The handle stays cool to the touch. The lid does NOT fall off when pouring, and the infuser goes almost to the bottom of the pot, allowing plenty of room for the tea to bloom.
I bought this teapot for my girlfriend for her birthday and she loves it. She has been using it multiple times daily for three months and the walls are not at all cloudy. The infuser works slowly but effectively, and is easily removed for use with flowering teas.I have used this teapot on electric stoves and never feared that the heat would damage it.The glass is fairly thick but it is still fragile, and the lid must be held on or removed while pouring. Our lid fell and shattered, but Grosche sent a replacement for the cost of shipping.
This is a very nice quality glass tea pot. It holds all 42 fl oz quite well. It is pretty to look at and I love the design. If you wash by hand, you'll have to use a bottle brush to get inside of it. Because of that, I've taken to putting it in the dishwasher. I use it mostly for red rooibos tea -- which it holds very well with little or no tea leaf leakage. I find it best to fill the teapot with hot water and then immerse the infuser -- rather then pore water directly into the infuser.
I've owned this teapot for about one week. I love the look and it worked well for the first 4 or 5 times. I have been using it to brew loose tea, so I want to use the infuser. Last night, I washed the pot, as usual, and left all three pieces to dry. This morning, I tried to put the infuser into the pot & it seemed it was a very tight fit. Since I didn't want to break the glass infuser, I ran cold water on it for a while & then was able to slide it into the pot.
Answer: Yes you can. My cooktop is glass.