I won’t go crazy with scientific research in this article, but I will reference just a single study to provide some context. To take this a step further, you may encounter a noticeable change in flavor as your coffee’s temperature reduces. The ice in the Orca Chaser melted at the 11 hour 35 minute mark for second place in the test. But the ice melted fast as the side of the smaller tumbler took a lot of heat.
Today I immediately loaded it up and went out for a few hours. For water and OJ I use Vapur anti bottles which aren’t bulky at all. In the realm of insulated water bottles, discussions around Yeti and Hydrapeak often surface, highlighting the meticulous engineering and design philosophies of both brands. All three tumblers had melted at the same rate with 9 ounces of water drained from each tumbler. To help me understand what the Ozark Trail Thermos line from Walmart could do, I assembled a collection of sizes that I picked up in person at my local Walmart. In total I had 6 of their double wall vacuum insulated thermoses, ranging in size from the 10oz Tumbler up to the 32oz Tumbler.
But the problem I have always encountered is that in the hot summer, the ice cubes in the cold drink quickly dissolve while in the cold winter, the hot coffee quickly cools off. This leads to a short time to enjoy the drink or have no way but endure an unfavorable experience. Watching ice melt was probably the most difficult task of the tests I performed—only because it seemed to take forever for the ice to melt in each tumbler. I started the test first thing when I got to the office and was waiting for hours on end. By the time I left the office about eight hours later, the ice still wasn’t entirely melted and the water levels in both tumblers seemed to be at the same level.
Of course, neither of these will replace your best insulated water bottle, which can also hold more than water. Although the Ozark Trail Tumbler is not dishwasher safe, it is very easy to clean by hand washing. But when it comes to keeping beverages cold, the Ozark Trail Tumbler is more dependable.
I managed to fit my headlamp, lighter, map, compass, and some tp in the pocket. Because it is cheaper and practically does everything that the Yeti Tumbler does, it is not surprising that Walmart’s Ozark Trail tumblers are selling fast. Owning a Yeti tumbler Rambler is something of a status symbol. Yet if you have a regular glass in the office, chances are you won’t be able to enjoy one after coming back from an hour long meeting. Both tumblers look very much the same, so it is a no-contest in this area.
It held ice in brutal Alabama August heat for 12 hours and 42 minutes. One reason the Ozark Trail tumbler held ice so much longer may be due to the fact that the sun was so low in the sky. For the last hour, the tumbler was not being blasted by direct sunlight anymore. After enduring the highest external temperature recorded during the test, the ice remaining in the Yeti Rambler has melted.
No liquid was added to the tumblers ozark trail tumbler as this is strictly an ice retention test. When the ice filled tumblers were placed on black asphalt, in full sun until all of the ice melted. All three tumblers were filled with the same amount of crushed ice. The amount decided upon was 27 ounces, the capacity of the smallest tumbler (Orca Chaser). I used crushed ice because it filled the tumblers more completely, leaving less room for air gaps. I felt it is the most accurate and fair way to fill the tumblers.
You can see in the image below that the thermos on the left has the hotter water, however the heat signature on both Tumblers is only present inside the Tumbler. Using a thermal imaging scope from ATN, I filled one of the 22oz mugs with water boiled to 185 degrees Fahrenheit and another filled with water boiled to 140 degrees Fahrenheit. I tested the temperature using a Weber meat thermometer which was $15 off the shelf. I used plain water which I boiled to temperature and placed inside each of the Tumblers and immediately closed with the provided lids.
This plain-Jane lowball made by Walmart and sold under the Ozark Trail brand name is actually a pretty good alternative to the model described above. For almost $20 dollars less, you’ll be getting a product that is rust-proof, sweat-free, and well-insulated. Not everybody has the money to buy the most premium hiking water bottle out there. There was one tiny bit of slush that fell apart in my fingers when I picked it up. The Ozark Trail had a bit more ice/slush after draining the water and it remained in the vessel. You are able to purchase additional lids both in a spill proof configuration and the open mouth version that comes with the tumblers.