Your ice-cold water will warm up more quickly. Yes, a thermos with an insulated lid and a vacuum seal at its base resists heat loss or gain more than other designs. We put 30 thermoses to the test to see which will keep your hot liquid hot the longest and which will protect that nice chilled drink from heating up. The hot test: We filled each thermos to the very top as high as we could without spilling with degree Fahrenheit water. We then closed the lids and let them sit for 24 hours.
Before opening, we shook them to distribute any hot water that may have risen to the top, then tested each with the same infrared thermometer that measured the starting temperature. We then emptied the bottles and let them sit for three hours so that all parts of the bottles would return to room temperature, without retaining any heat from our earlier tests, before continuing to part two.
The cold test: We filled each bottle to the very brim with chilled water, all thermometer-confirmed at a cool 46 degrees. Again, we sealed up the bottles and let them sit for 24 hours. The next day we shook them, opened each, and checked the temperature. Using these measurements, we calculated the heat loss for our hot test and heat gain for our cold test.
For both, a smaller number is preferred. We also used these bottles as you will, seeing how easy they are to drink from, close, open, toss into a bag, and clean.
The Elevation is an incredibly impressive thermos with strong thermal retention and a good lineup of accessories that give it an edge over competitors. The ounce model comes standard with a screw-top lid, which we used for our temperature testing. We like that the lids can mix and match with other Otterbox vessels. The screw-top has a great handle and is easy to open and close.
The Elevation strikes a rare balance between superb insulation and ease of use that made it the stand-out winner. Read Full Review. Weight: With an average 4. We used both to drink from but stuck with the screw top during the quantitative portions of our test. That made for swigs that were more refreshing on afternoon walks and all-day hikes. But drinking from it was only okay. For the first week of use, we needed both thumbs to pop the lid, and though it has loosened some, it still requires a forceful push.
The Summit is available in dozens of colors, including ombres and solids. Whatever you choose, treat the bottle with care. Our test model sustained several small nicks in the powder-coated surface after falling onto a gravel lot from a car tailgate. And what really makes this bottle stand out is that you get those stats for a very affordable price. Weight: 1 lb 6. Some thermoses swap lids to transition from use with hot beverages to cold. The MultiBev, which CamelBak introduced this past summer, goes a step further by offering two lids and two containers.
But unscrew the lower portion of the bottle and remove the foldable silicone sip cap from the main lid and you have a ounce travel mug. The innovative, space-saving design is well executed. The mug parts stayed securely in place, without rattling, when we used the MultiBev as a water bottle. But they deployed easily when we toted a vat of coffee to a local park or simply wanted it to stay at temperature longer than it would in a French press at home. The silicone base further prevents the thermos from sliding on tables and countertops.
Lastly, the MultiBev is one of the heaviest and priciest models on our list but not unjustifiably so, especially for a two-in-one vessel. Weight: 5. The unicorn of travel mugs is one that combines the drinking convenience of a sipping lid with the thermal efficiency of a screw-top. This ultralight Zojirushi model comes pretty damn close to that ideal. With one hand, we could hold the bottle, slide open the lid lock, depress the button to flip the lid backward, and close it back up after taking a sip.
We like that the lid is leakproof and disassembles easily for deep cleans. As for its insulation chops, the SM-SE36 outperformed the next best travel mug in our hot test by a whopping FUNtainer Water Bottle. L Surprise 12 oz.
While the vacuum flask was invented in , it was not manufactured for commercial use until ; the brand name comes from the Greek word Therme meaning hot. The company provides unique solutions for keeping food and beverages hot, cold and fresh with innovative portable food and beverage containers that provide a more comfortable, enjoyable eating and drinking experience for people on the go.
The product line includes hydration bottles, vacuum insulated travel mugs, stainless steel beverage bottles, travel tumblers, insulated food jars, travel mugs, ice packs, beverage can insulators, stainless steel insulated food jars, insulated 6-can coolers, straw bottles, kid's BPA-free bottles and food jars, water bottles, lunch bags, vacuum bottles and more.
Hot Matters. Cold Matters. It Matters. Show more of the previous text visually.
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