Retains heat very well. It looks good and fits easily on most hands. My two remarks are that it is not currently available in a size less than 16 ounces, which is strange, as its cousin Hydro Flask comes in this nice size of 12 ounces. It also feels like Oxo is still inventing colors. The color indicator on the web page is almost baby blue, while the glass in the photo is quite deep blue, but the one I received for testing is a darker, more muted shade of the latter. “Bright Red” is an almost happy shade of orange in the photo, but it looks more like “Campbell’s Tomato” in real life.
I also conducted a temperature test in my kitchen at 70 degrees Fahrenheit, filling each glass with water just after boiling and closing their lids, and then returned four hours later to measure their temperature. I have to keep in mind that the dishes were different sizes, as more water would stay warmer longer, but there were a few surprises. The 14-year-old Yeti, with its wide mouth and thin lid, was alone at the bottom at 125 degrees; warm but no longer hot. A large medium-sized piece was occupied by 16-ounce Contigo, unimpressive in size at 140 degrees; Hydro Flask at 144 (not bad for a 12 ounce glass); and then three in the sweetest place, Takeya of 17 ounces and Oxos of 16 and 20 ounces, at 153, 154 and 157 degrees, respectively. Zojirushi easily took the highest awards for heat retention, with 173 degrees for the little boy and 180 for the big man.
Strangely, this is where it gets a little thorny. Do you want something so hot? My mouth didn’t like to drink 180-degree hot water at all. Almost everyone will have to open a container of liquid at this temperature and let it cool for a while before drinking. In addition, anything below 140 degrees is in the danger zone, where bacteria can thrive.
With that in mind, after 6.5 hours I checked again and concluded that only Zojirushi were (well) above 140 at 156 and 165 degrees, although the 20-ounce Oxo was not much below the mark at 137. If you need your drink To stay hot in a glass for a very long time, Zojirushis are your safest bet.
A happy surprise that shook things up came at the end of testing, when I half-filled the big Oxo with water, turned it upside down and put it in a plastic tub. I totally expected to see the bottom of the tub slowly fill with water, but no! I surrounded it with Contigo, Hydro Flask, both Zojirushi and Takeya, all full of water, turned over and tucked away in their own bathtubs for the night. Elizabeth found my Tupperware party on the counter in the morning. She was intrigued to learn more about what I had started after going to bed, and I was excited to announce that not a single drop had leaked between the six of them overnight.
“Impressive,” she said. “Engineers applying to the pressing problems of the world!”
Later I brought Oxo and Hydro Flask, both three-quarters full of water, to my small rooftop patio, and with one in each hand I danced a wild dance while my hands ached, trying to make them leak with the lids on. closed position. It is impressive that they did not.
Although “not leaking” was not a particularly surprising result for Zojirushi and Takeya, the surprising stability of “less secure” competition certainly bites their market. In fact, it almost overturned my adventure and travel classification system.
The new Oxo may not be the best glass for absolutely everyone, but it does so many things so well – especially the way it stands in the dishwasher – that it’s generally obviously the best glass to travel there.