A review of the Coldest bottle says it kept drinks cool for 36 hours, but it was not clearly better than an Owala bottle in the test. The bottle's appeal seems to be as much about design as performance.
01Summary
- 01Coldest, a bottle brand featured on ABC's Shark Tank, says its bottles keep drinks cold for 36 hours.
- 02The reviewer compared a 46-ounce Coldest bottle with a $30 Owala bottle using three cups of water and one cup of ice in each.
- 03After a few hours, both bottles kept water ice-cold, with Owala measuring a couple of degrees colder throughout most of the test.
- 04At the 36-hour mark, both bottles tied in temperature, although the Coldest bottle had a larger size.
- 05The writer said Coldest's cooling technology did not seem clearly superior to the bottles they already own.
02Why it matters
If you are choosing between reusable bottles, this suggests Coldest's main draw may be style and limited-edition designs rather than a dramatic performance advantage. It also shows that cheaper or better-known alternatives may deliver similar cooling.
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