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

Input:
Question: can it be used on a ceramic or glasstop stove?
Document: Well, it clearly states in the directions that this grill/griddle is suitable for ALL stovetops, excluding glass and ceramic (neither applies to our stove).All I can say is had we been near the stove and a hot piece of cast-iron came hurdling towards us, there would be a lawsuit on our hands. Having read the instructions before and after the incident, we did nothing wrong. Needless to say, we will be taking this product back for a refund and purchasing another brand...
I received this as Christmas gift and am very disappointed. It is very heavy which could be a good thing but it heats very unevenly when used on two burners of my gas stove. Pancakes are half dark and half white. The surface is very rough which is not too much of a problem for grilling steaks on the flip side but is terrible for pancakes. And lastly because the handles at each end protrude slightly it makes it a little unbalanced to store.
We use this indoors on a gas stove and have no problems cooking pancakes, steaks, burgers, veggies or anything else. Its a piece of iron how much direction do you need? Wipe it down with some oil when you get it, then cook on it, when you're done, clean it. Havent had any problems with the coating flaking as others have mentioned and we use it regularly. Its not non stick, its not high tech, its a slab of metal used to cook on, if you cant handle that then go back to Calphalon.
Used it for the first time about two weeks ago on our electric stovetop. And then it cracked a few minutes later. Really, cast iron? Cracking like that? Instructions said it was safe for use on both gas and electric stove tops. Unfortunately, it's took late for me to return this item for a refund via Amazon, as the window for doing so expired before we used this item. This will no doubt keep me away for all Emeril products for a long, long time if not forever. Terrible quality.
It is not &#34;non-stick&#34; but with a bit of Pam spray oil, it works well. Non-stick grills do not stand up to the heat of our gas grill; this ceramic coated grill looks like it will.
Ceramic & Glass stovetop users beware! After getting this product, I was sorely disappointed to read it is un-useable on ceramic or glass cooktops. This information should be made available on the box, or in product description...not lying in wait for the consumer upon opening and reviewing the user guide. Sorry Emeril, back to my Logic cast iron.
Since an induction cooktop does not generate heat, the only heat the cooktop receives is the heat coming from the cooking utensil itself. Therefore the paper towel does not get hot enough to ignite. (Do not try this on a standard radiant heat ceramic/glass cooktop as the paper towel will catch on fire. This only works with Induction cooktops because they use magnetic energy instead of heat to make the utensil hot, in this case, the grill/griddle. )The Emeril Grill/Griddle heated fairly uniformly as long as you wait about 15 minutes for the heat to penetrate the entire pan.
This works well on my induction cooktop. I was concerned this type of reversable grill/griddle wouldn't work because they don't actually make contact with the cooktop except for around the rim on either side. Induction elements must be able to sense that there is cookware on the element or they won't turn on. But despite the fact that it sits about 1/4" above the cooktop it is still able to sense that there is something there, so the element turns on. I have read that induction elements can sense the presence of a pan up to 1/4" above the cooktop surface, so evidently this fits within that range.The instructions recommend against using this product on ceramic/glass cooktops, but with an induction cooktop you can simply place a paper towel under the cookware to protect the glass surface from scratches.
This is a very good grill for the stove and it cooks evenly and well. The only thing is it is very hard to clean.
Do not buy this product. It is defective and extremely dangerous. It broke with such force that one of the peices jumped off the stove and fell on the floor nearly breaking my wife's foot. There is an obvious manufacturer defect. Do not use this product! !
Answer: I would be afraid to use it on a glasstop or ceramic stove. That said, I don't know that it couldnt