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

Input:
Question: seems to me that originally these cups were made of ceramic and then they made them in plastic. Recently purchase of the cup: plastic or ceramic?
Document: I've had no issues with odors from the lid or finding the cup "too heavy" - it's made out of ceramic and if you find that too heavy maybe you should use an IV bag. I'd recommend this as a travel cup or for the office. It's a great idea and an even better cup!
I chose ceramic because it is eco-friendly and because the cup will not absorb the flavors of my beverage. The lid does, however, tend to retain the smell of coffee, and should be soaked in lemon juice (as per the instructions on the labeling) for stains (I personally give both lid and cup a scrub with baking soda and vinegar). For this reason, I chose to purchase a second cup for my tea, so I don't smell coffee while expecting to drink tea.
I bought this mug after much searching because it was the only microwave-safe, non-plastic travel mug that I could find that didn't have a review complaining about leakage. I regret to inform you, that the lack of reviews complaining about this problem is not an indication that it does not exist.The trouble seems to be that the silicon lid expands when exposed to heat, therefore when the beverage is steaming hot a gap forms between the cup and the lid.
it all looks and feels like cheap plastic!!! I am disappointed. This product is misrepresented and is definitely not as advertised. It's not an expensive purchase, so, to me at least, it's nor worth sending back. Hope this review helps others in the Amazon community...
The cup itself was just what I was looking for. The porcelain cup is much better to drink from than the stainless steel cups I am currently using. I do have a problem with the lid. It is hard to get on the cup. It also has a smell that if you are drinking from it affects the taste of the coffee. I am hoping the smell goes away in time. I would prefer they had a strong plastic lid instead.
I received my mug and it was total garbage. It looked the same as the photo, but it was not porcelain, it was a made of a cheap plastic and the inside layer was already warped and peeling when I received it. I was just going to try to live with it, but the inner layer peeling got worse and worse. I was finding plastic flakes in my drinks, gross. It actually sealed pretty well, which I why I almost kept it.
And it does not spill. This is a good-sized ceramic mug that is inexpensive, and coffee tastes SO much better than from a plastic or metal cup, which is the most important feature. Easily the best choice among those offered on Amazon.
OK - I have spent aproximately 20 hours searching for the perfect coffee cup. To me that is:- Ceramic (not chemical leaching plastic or funny tasting - and often plastic lined - metal)- Keeps things warm for a reasonable amount of time- LARGE - holds at least 16 oz, but preferably 20oz (what the heck is the point of a 12oz to-go cup!?!
My previous ceramic cup had wonderful biblical sayings on the outside, but the silicon cover smelled terrible for many months. It finally cracked, but I loved the idea of a ceramic cup rather than a plastic coffee/tea cup. I searched on the Internet and found this cup. It had great reviews, so I decided to give it a try. I received the cup quickly and was pleasantly surprised that the lid did not have any odor to it.
For a long time, I've had a beef with your classic, run-of-the-mill mugs. Either you have the ceramic ones with no top that clutzy me is infamous for spilling all over the universe, or you have the plastic travel mugs with a spill-proof top, yes, but smell like something has died in them after about a week, no matter how careful your cleaning methods might be.
Answer: It has probably been 6-8 months since I purchased one, but we have 3 or 4 and they all were ceramic.