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

Input:
Question: Can this be used on ceramic glass top stoves?
Document: Nothing exceptional, distributes heat evenly. I bought it to light my hookah coals on a ceramic glass top stove and it does the job. I have yet to use it with any cooking pans but I have used it to cover pans and it works well as a screen too.
I bought this diffuser to be used specifically with my ceramic tagine. I needed to bend the handle up slightly in order for the diffuser to sit flat on my smooth top stove. It works well and I'm definitely glad I made the purchase.
This is exactly what I was looking for so that I could use my glass teapot on top of the stove.
I have a glass range top (flat). Diffuser has a wooden handle that keeps the diffuser from lying flat, so it tilts slightly, could be dangerous. I will have to find one that lies completely flat.
I used to preserve the ceramic of a tagine pot. Works well. Found it also convenient to make/reduce juices in pans coming out of an oven. Do not wash in water as the diffuser will show rust right away.
I am still looking high and low for a what may be called a "heat diffuser",or a "trivet", which will fulfill MY needs. I am not simmering food, I am trying to safely use glass cookware on a electric coil stove. I know that SOME products MUST be made for THIS purpose. Truly, I am NOT simmering food -- but my temper is truly simmering, after having used this NORPRO TIN HEAT DIFFUSER!
That's where the diffuser comes in handy, it seperates the direct heat from the pan. I also used it on my old stove which was not a smooth top. It's great anytime you don't want direct flames touching your pots.This is great to use instead of a double burner instead of 2 pots & dealing with the hot water in the bottom pot.
This is the worst product I have ever purchased. Luckily Amazon is going to send me a refund. I used this product and within minutes on a low heat on a gas stove top, I smelled smoke and noticed the diffuser was burning. It is now completely useless and discolored. Waste of money and time, I guess you get what you paid for. Do not waste your time trust me!
One thing about the gas range when we moved that just irked me was my inability to cook at low temperatures without burning things, even with my expensive "waterless" stainless steel (18/8) cookware. I was baffled and a little perturbed until one of the neighbors talked about her "diffuser." Your what, I asked? She showed me a well used, blackened metal diffuser that goes over the flame and your pot or pan sits on top of this.
I had one of these but I used it so much that it rusted & was breaking. (I guess I wasn't suppose to put it in the dishwasher) Anyway I'm very happy with this diffuser. It came quickly & was brand new with the user tag on it.I have an electric flattop stove that I absolutly love, so easy to clean!! but the pans sit right on top of the heat & sometimes the food burns to the bottom of the pan & that effects the taste.
Answer: I specifically bought it for a smooth-top range. Unfortunately it does not sit flat because of the thickness of the wooden handle, so it doesn't work very well. Look for one that is totally flat (or maybe cut off the handle? Good luck!