JoyJolt Cadus Glass Coffee Cups Double Wall Insulated Mugs Set of 2 Tea Glasses, 10-Ounces.

First it works just like it's suppose to heat wise. You can pour coffee and it stays hot for a hour. That's great if you are going to want to make the coffee 'last'. But if you plan on drinking it in the next 20 minutes, I would put it in another cup.The real problem with it is you can't make a good seal lips to glass as it's just too big. Maybe Mick Jagger could. But for most people, you are going to dribble when you sip.It might be fun to play with liquid nitrogen in them.

I have done quite a bit of research, have read hundreds of reviews, and have experience with a few of these type of glasses and this JoyJolt Cadus borosilicate glass mug/cup is thick and sturdy in comparison to others. It appears to be of good quality, durable, and well made (have only had it for a day). It has a sturdy handle which is easy and comfortable to hold. This glass provides a comfortable sip as well. I love all of the features that most borosilicate glasses do not boast, which are shatter proof, dishwasher and microwave safe, as well as freezes and oven safe up to 350°. The mug/cups came packaged tightly in thick protective foam which would seem difficult to have cracked during transit. (Definitely giftable)We are enjoying these beautiful, unique glasses and look forward to see how they unsure over continued use and washing. (We have not yet placed in the microwave, dishwasher, freezer, or oven—for what reason I don’t know why one would need to use in the oven.) It has worked great for our hot and cold beverages. The double wall has shown no accumulation of condensation in between, nor soapy water after its ease in washing. The Cadus has also proven NOT to be hot to touch after enjoying several cups of hot coffee!A great purchase so far!

I wish the mugs were actually at least the 16oz of useable space. As others have said, it's 16oz to the very top. I don't care for the wide rim, as it's hard to sip without "leaking" down the side of the mug. But that may just be a characteristic of any hollow glass coffee cups. The mugs do keep my coffee hot by not absorbing so much heat initially and with the air layer between the glass. Also the handles are very nice to hold.

When washing these cups after only 3 uses I found soap and water trapped between the two layers of glass in one of two.There is no visible signs of any crack or means of the water and soap getting where it is and so far I haven’t found a way to remove it. Should be noted that it was hand washed in the sink.Disappointed!!Edit:After contacting the seller they made a “more” then generous offer to rectify the problem. Very satisfied with the seller and their response to what I believe is a “ one in a million “ defect..

These mugs are a bit pricey, but I love them. They are unique in their design, and because I drink my coffee/hot tea slowly, I love that this mug keeps it warm! I will definitely purchase more when I can see if they resist staining following a few uses!

Let me start off by saying that if you think you're immediately going to be able to mimic the expertly photographed photo of the latte shown with this product, you're mistaken. Perhaps if you're a coffee artist, like the regional award winner at my favorite shop, it's self evident, otherwise... it requires practice.Now, on to the actual product review:- I was a little surprised by the size of the cups when they arrived, and that was fault perceiving them to be smaller.- The cup scarcely fits in my Breville espresso maker (gotta remove the grate for the extra millimeters of space, if I want to brew directly into the cup.- I am pleased with the degree of insulation the cup provides as I can hold the body or the handle without concern of being scalded.- When I saw the size of the cup, I had a concern that there was going to be a trick to drinking from it, like there is drinking from the german bier boot, to prevent the final volume from spilling on myself. There is no trick, it drinks smoothly from first to last drop.- I've gone through more than 10 washes of the cups, all by hand, and I find that the geometry of the cups is minimally more difficult to clean than a cylindrical cup.Finally, these cups are pretty pleasing to look at and with practice anyone that can tie their shoelaces in the dark can makes something coffee and pretty in these cups

Nice glasses and big enough for latte.

HI LIsa I have not used these mugs yet I vought two for my daughter and gwo for myself she ia a tea drinker and me coffee glass is so much easier to clean and does not get rings from the microwave that are hard to get out.I would like to reec=valuate after the holidays as these are gifts so not used yet

SOOO CUTE, there's a vase inside. good size of 16 oz, very versatile. This is easily one of my top 3 purchases this year. EXCELLENT value, I am glad I waited a bit and didn't get the brand name mugs.

Great design and they keep my coffee hot longer

As advertised

Very good product !

I gave it 4 stars only because one of the set had a tiny chip on the rim. It doesn't penetrate the glass but it's a flaw nonetheless. Other than that I'm liking these mugs. They keep my beverage hot and they are fun to drink with when i layer the milk and coffee. Good buy.