The Zulu water bottle is colder than the Coldest?

“I actually have no idea, let’s do the 24 hour temperature test. I packed both of the bottles up with ice and water as fairly and evenly as possible and then filled each one up to the top with water.”

24 hours later.

“After 24 hours, we removed the lid of both the bottles and we inserted the thermometers and let the temperature stabilize for a minute and then this is what we found out….”

“The Coldest was actually 44 degrees and the Zulu was 62 degrees, an 18 difference in coldness.”

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