We tested both hot and cold liquids in the YETI bottles.
To test hot liquids, we filled a yeti cup uk
Bottle with boiling water and set it outside on a cold, snowy Denver day. The outside temperature hovered around freezing.
Four hours later, we opened the bottle and checked the temperature with a meat thermometer. The water registered 160º F, which is about the perfect temperature for a hot coffee or tea, as a quick sip test confirmed.
The yeti rambler tumbler
tops are tough, and they easily open and close, snugging firmly to ensure leak-proof performance.
To test the durability of the bottle, we dropped the yeti 30 oz. rambler tumbler cup
18oz model, full of water, from six feet, both onto its bottom edge and top handle. It bounced amazingly high, and it showed little damage. This is important, as a puncture to the stainless steel shell would result in the bottle losing its insulating propertiesyeti 30 oz
bottles are set apart due to the three-finger graspable lid and rugged design, which seems slightly more durable than Hydro Flask (although this is difficult to test — both are plenty tough for normal use).
The tumblers were checked every two hours and water was drained from each tumbler into a measuring cup. The amount of water drained from each tumbler was noted as well as the external temperature of the tumbler and the pavement temperature.