The best water bottles of 2021 are not yet in the market. This is because there are many different types of water bottles that are still being developed. For example, some companies are working on creating a water bottle with a built-in filter for toxin removal.
The best insulated water bottle 2021 is a product that is designed to keep your drink cold for hours. It has a double-walled design and insulation that will keep your drink cold.
It’s easy to become lost in all the choices when an unending stream of water bottles with various promises about technical advances and insulating qualities flood the market.
We whittled down hundreds of insulated water bottles to 15 finalists after reading reviews and exploring popular bottles around the internet to see which ones are really worth the money. Then we put them through a battery of tests to see which one is the best. (Scroll down for additional information about our testing procedure.) We narrowed down our choices to two bottles that stood out from the others after two months of testing and drinking a lot of water.
Overall, the best water bottle
During our testing, the Yeti Rambler came out on top due to its excellent thermoregulation, incredible durability, and great chug cap, which provides a pleasant and fast sipping experience while allowing simple access to the superwide mouth.
The most cost-effective water bottle
The Healthy Human Stein, with its 21-ounce capacity and excellent thermoregulation, was a surprising standout in our tests. We didn’t care for the lid, but you can upgrade to the Flip n’ Sip lid to make sipping simpler. It also comes in a bewildering array of colors and three sizes to suit a wide variety of preferences and requirements.
Yeti Rambler (26 oz.)
While the Yeti Rambler is a little on the pricey side, it is without a doubt the finest water bottle we tested. It not only keeps your beverages hot or cold for hours, but it’s also very sturdy and features the finest lid we’ve ever tried. The Rambler is also dishwasher-safe and comes in 14 different colors and five different sizes (12-ounce, 18-ounce, 26-ounce, 36-ounce, and 46-ounce).
While there are other bottles with good insulation that are also fairly durable, the Rambler’s standard-issue chug top puts it ahead of any other choice on the market in our opinion. This lid is made up of two parts: one that screws into the bottle and has a spout, and another that twists on top to protect it. This two-tiered design allows you to take a sip of water at any time by unscrewing the top and chugging from the spout. When it’s time to refill your bottle with water and ice, though, you can remove the whole apparatus, exposing the Yeti’s massive mouth.
Chug Cap for Yeti Ramblers
Other bottles we tried had spout lids, but they had to be bought separately and none of them functioned as well as the Rambler’s. Because of its cap, the Rambler was by far the simplest to drink and fill of all the bottles we tried, and it also maintained little to no coffee taste after our testing.
Best of all, with the Rambler, you don’t have to sacrifice much in terms of looks to obtain top-notch performance. The Yeti bottle is available in a variety of bright, fashionable hues, including light blue, olive green, and even a vibrant pink. Furthermore, for an additional $5, you may personalize your bottle with everything from simple text and monograms to state insignia and even your own logos.
The Yeti Rambler achieves the ideal mix between being a tough, insulated bottle that can withstand the harshest conditions and yet looks nice on your desk. We believe you’ll like having a Yeti Rambler by your side no matter where you travel because of its customizability, simplicity of cleaning, and clever chug cap.
Healthy Human Stein, 21-Ounce
This water bottle from Healthy Human was one of the best we’ve tested, costing about $20 depending on which color you select. Last year, its equivalent, the Healthy Human Curve, took first place in our overall ranking. The Curve has had some supply problems and may be difficult to come by, but the Stein is essentially the same bottle as the Curve, without the wavy shape, which improved ergonomics but was a love-it-or-hate-it aesthetic choice.
The Healthy Human, like the other bottles we tested this year, performed a fantastic job of maintaining temperature, particularly during our shorter time periods. Furthermore, it received the best durability rating of all the bottles we examined during our initial round of testing. Aside from minor paint peeling on the bottom, the bottle hardly exhibited evidence of damage after being dropped on its bottom and lid. It was one of the few competitors that didn’t devolve into a shaky vessel that couldn’t stand on its own. Its success during the drop test may have been attributed to the fact that it was one of the lighter choices, since the 26-ounce Yeti and other smaller bottles we tried didn’t do as well.
The lid and mouth of the Stein are where it falls short. The Yeti’s mouth isn’t quite as large as the Rambler’s, so although filling the bottle isn’t difficult, getting ice in as fast as you can with the Rambler is. The carabiner-equipped lid didn’t retain any bitterness after our coffee test, but it’s a basic screw-on top, so you sip straight from the bottle’s mouth rather than through a spout. For an additional $14.99, you can get the Healthy Human Flip n’ Sip cover, which significantly improves the drinking experience.
The Stein is available in 39 distinct colors and three sizes (16-ounce, 21-ounce, and 32-ounce), with various sizes having varying availability. Unlike other bottles, the selection isn’t restricted to basic hues, and includes interesting designs like Mirage, Willow Oak, and others. The Healthy Human Stein also comes in recyclable packaging, which is convenient for individuals looking to save money by purchasing a reusable bottle.
The Healthy Human Stein is a sturdy bottle that will keep your beverages hot or cold for as long as you need them, and will not dent or shatter if dropped. Although the top isn’t the greatest, the bottle’s color choices and cheap price make it a worthwhile purchase.
We retested a few of the best-performing water bottles for our 2021 update, doing another set of thermoregulation testing and adding a coffee test to determine whether the bottles or lids maintained any bitterness after being cleaned.
Because most of the bottles we examined showed comparable thermoregulation skills, this year’s testing were conducted over a shorter length of time to simulate daily activity. We measured hot water after 12 hours and cold water after 24, but this time we cut the testing time in half, to six hours for hot and 12 hours for cold, because you (hopefully) won’t be drinking nine-hour-old coffee, and if you’re keeping up with your daily water intake, it should be time for a refill before the 24-hour mark.
Because the top-tier bottles have comparable thermoregulation capacities, we focused on factors like durability and drinkability that would impact your experience on a daily basis. Our two winners were the two most durable bottles we’ve ever tested, both surviving three drops onto concrete reasonably unharmed.
We spent hours putting all 15 water bottles through their paces to ensure they were up to the task of daily usage. That included determining how long they keep water cold, hot, how well they withstand a drop, and how easy they are to drink from, among other things. Here’s a rundown of everything we looked into and how we went about it:
- We poured water into each of the bottles just after it had finished boiling (starting temperatures were all within a few degrees of each other, ranging from 202.4 to 207.1 degrees Fahrenheit) and measured the temperature with a liquid thermometer immediately after the pour, six hours later, and 12 hours later. We only measured again after six hours for our second round of testing.
- Cold water test: We poured cold tap water straight into the bottles, then measured the temperature using a liquid thermometer immediately after the pour, 12 hours later, and 24 hours later (beginning temperatures were all within 1.4 degrees of each other, ranging from 47.5 to 48.9 degrees Fahrenheit). We filled the container halfway with ice for our second round of testing, then poured cold water and recorded the temperature after 12 hours.
- Drinkability: We drank from the normal tops of the bottles while standing still and walking, observing how easily each bottle spilled and splashed.
- To check whether any water spilled, we shook the bottles, turned them upside down, and tossed them in a backpack for a commute.
- We poured freshly brewed coffee into each bottle and set it on its side for many hours to see if it would hold up. After that, we cleaned the bottle and lid and tasted them to check whether they maintained any of the coffee’s flavor.
- Drop test: We dropped each bottle three times from five feet above concrete, three times on the lid and three times on the body. We first determined if the bottle was still useable (whether the insulation or cover had broken), then evaluated the extent of the dents and other damage.
- Cleanliness: We used a regular sponge to clean each bottle, followed by a bottle brush. We also evaluated how fast we could add ice to the bottle in this test.
- We used a food scale to weigh each empty bottle in pounds.
- We took note of any loops on the bottles, the number of average-size fingers that fit inside, and how pleasant it was to grasp.
- Grip: We tested the paint on each bottle and ranked them from least to most sticky.
25-Ounce S’well ($45; swell.com)
We originally rated the S’well bottle the best bottle for temperature retention, but after thinking about how you’d use a water bottle in a day-to-day capacity, we realized that temperature retention over 24 hours isn’t as essential as durability and drinkability. As a result, the S’well bottle lost a few spots in our rankings since it was severely damaged in our drop testing, and its tiny opening makes it difficult to clean, and filling it with regular ice is almost impossible.
TKWide ($39.95; kleankanteen.com) by Klean Kanteen
The wide-mouth Klean Kanteen bottle eliminates the small-mouth issue of the regular Klean Kanteen bottle (which we previously tested) and has a larger cap and a more durable body. It fared well in the cold water test, finishing second behind the S’well, but not so well in the hot water test. If you don’t like the Yeti or the Healthy Human, we recommend the Klean Kanteen TKWide.
Wide Mouth Hydro Flask ($44.95; hydroflask.com)
A Hydro Flask is a Hydro Flask is a Hydro Flask is a Hydro Flask is a Hydro Flask If you’re already planning to get one, you won’t be disappointed, but we don’t believe it’s the greatest choice available. Although it has a nice appearance, it didn’t perform as well as many of the other bottles we tested. The most important piece of advice we can offer is to avoid dropping the Wide Mouth version on its lid, since it snapped straight off and splashed water all over our testing. We assumed it was a defective lid the first time it occurred, but when a second lid had the same issue, we decided to blame it on bad design.
Standard Mouth Hydro Flask ($34.95; hydroflask.com)
The Standard was just as good as, if not better than, the Wide. It’s also lighter, which means less weight to tote. Although you can’t pour ice as quickly, the narrower aperture makes it simpler to sip from. Just watch out for dips. It became so degraded as a result of our experiments that it lost its ability to insulate.
Klean Kanteen Classic ($39.95; kleankanteen.com) is a water bottle made by Klean Kanteen.
Thermostatically, this Klean Kanteen performed well. The narrow mouth (with an oddly small lid) and the fact that the body was so damaged that the insulation technology failed were the two greatest drawbacks.
CamelBak Chute Mag ($36; camelbak.com) is a travel magazine designed by CamelBak.
This bottle worked well, particularly in terms of temperature control. The lid has a little magnet on it to keep it from hitting you in the face as you drink. The cap fell off when we dropped it, which was the greatest flaw.
Carry Cap by CamelBak ($36; camelbak.com)
If you’re contemplating CamelBak, the Chute Mag is a better option than the Carry Cap. The Carry Cap’s cover features a large loop that is comfortable to grip, however it broke off during the drops.
Miir Bottle (miir.com; $29.95)
The Miir also outperformed the Yeti and Sigg in terms of thermoregulation. During the drop test, however, it lost popularity when the lid shattered on the first drop. We only tested regular Miir bottles, not wide-mouth Miir bottles. Miir is a fantastic choice for a smaller, portable bottle if you’re cautious.
Thermo Flask Sigg Hot and Cold One ($35.15; amazon.com)
During the temperature testing, this bottle came close to matching the Yeti Rambler. It’s a stylish bottle with a locking top and a built-in tea filter. When we dropped it on that lid, it completely disintegrated. On the first drop, it snapped. Replacement lids are usually available (though they’re now out of stock), but it wasn’t as robust as the other bottles.
Kanpai Bottle by Snow Peak ($79.95; amazon.com)
This bottle is stunning, receiving the highest score in terms of pure design. However, it is also costly, and it performed poorly in our tests, particularly in thermoregulation, where it was ranked third worst behind the Takeyas. During the drop test, the lid broke.
Easy Clean ($23.59, initially $25; amazon.com) by Stanley
This bottle did a good job of keeping cold water cool, but not so much with hot water. The lid survived well through the drops as well, however the body received significant dents on the bottom. The little factors lowered its score: there weren’t as many sizes, lids, or color choices; it was heavier; and it wasn’t as simple to handle.
Takeya Standard ($24.99; amazon.com; originally $29.99)
When it came to thermoregulation, the Takeya bottle fell short. The top has a handy tiny spout that unscrews to expose a broad opening for quick sipping, but it wasn’t enough to offset the inadequate insulation.
Takeya Active (Amazon.com; $34.99)
The Takeya Active is essentially the same as the Takeya Standard, but with a few tweaks. The rubber boot on the bottom is very notable, and it’s definitely worth the additional $5 if you want to purchase a Takeya. While it didn’t entirely eliminate dents, it did make a significant improvement and kept the paint on the bottom from peeling.
The yeti water bottle is the best water bottles of 2021. It has a lifetime warranty, and it’s insulated to keep your drinks cool for up to 24 hours.
Frequently Asked Questions
What is the best water bottle brand?
The best water bottle brand is the one that has a wide mouth, which makes it easy to drink from.
What is the healthiest bottled water brand?
The healthiest bottled water brand is Aquafina.
Are Nalgene bottles Safe 2021?
Yes, Nalgene bottles are safe to use in 2021.
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