One customer mentioned an "inside lip" in the mug. What is the lip made of? Please describe it with details.
1948192
The inside lip is ceramic and glazed like the rest of the mug. It holds the plastic lid in place. Does not seem to get into the way of drinking. Runs through the dishwasher wonderfully.
192383
It is a very heavy grade of plastic. I have dropped mine, and it hasn't broken.....even in cold temperatures! (Wyoming) I always hand wash mine as I don't like to weaken the mechanism from the dishwasher's intense heat. I would never have any other Travel Mug.
1760264
Hello, It's a Glass jar. If you have any further questions or comments regarding this matter,please feel free to discuss it with us at by replying to this email. Friendly Regards, NusseSave Plus
1599262
Hi V. Herbert,This is Henry from Smartnuvisions. The mugs that you are asking about are made of glass and quite heavy, thick like a mason jar.Have a nice day.
914809
sorry, found the answer in the older posts.... inside seems to be aluminum. yuk.
812555
The lid is plastic with a silicone sealing ring. I bought two of these mugs and the mugs themselves are great, but, I don't like the lids. One lid came with a broken seal and the other lid seals fine but is difficult to drink from.
1238541
Not entirely sure but the Zojirushi website has lots of info. It's a hard plastic with what I think is gray silicone gasket. The lid disassembles for cleaning into 3 pieces. I can't say enough about this mug. If maintaining temperature over SEVERAL hours (although I've only used it for hot) is important to you, this thing is the bomb. And it's beautifully designed.
5585
No plastic in mug- all ceramic- and yes there is a lid (which is plastic)- This is second one my husband has owner- it is wonderful!!!!
2267964
I've owned two of these mugs for several years. There are no markings on them to specify the nature of the glass. However, I use it in the microwave to make boiling water for tea without problems, or pour boiling water into into it. I replaced my first one because I accidentally knocked a small chip off the lip; the glass did not shatter so it is probably tempered at the very least.
2229669
The inside is completly steel. But the grid of the press that brews the coffee has some plastic. It is a great mug!
1346916
Hi Theresa, The mugs i have are lined with stainless steel, i believe. And the taste does not seem to be affected by it. hope that helps
1512102
The mug is made in China. The paper insert with instructions inside the mug said made in China.
37244
I don't know if there is supposed to be a soapy liquid inside the mug,,it is not described with one and I don't see any in the mugs that I have. I don't know what good a soapy liquid would be inside the insulated part of the mug because no water gets in there. I have washed them by hand and machine several times and there is no indication of soap anywhere If you have soap in one, I suggest you contact the manufacturer or Amazon.
734167
I have no idea what is inside. I bought it because it is made in one piece and doesn't separate from the handle. I wouldn't put this in the microwave...too pricey!Love it!
794930
The inside is stainless. As others have commented, the mug holds hot or cold temps quite well.Being that the mug is taller and slimmer than most mugs, I had to wrap a strip of Velcro aroundthe middle of the mug for it to fit snuggly into a standard handlebar bracket on my bike.
997256
These are solid copper mugs inside and out. I got a pair as a gift and I was so impressed I treated myself to a pair!
1186481
The interior you see inside is metal. But based on weight, i think the insulating material is probably glass.