Best Reusable Water Bottles of 2026, Tested by WIRED

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Reusable water bottles are a matter of personal taste, and WIRED reviewers have strong opinions on which jug reigns supreme. We’ve spent years testing, sipping, and spilling our way through the best water bottles to round up our favorites.

A note to remember: You only need one reusable bottle (though I won’t judge if you rotate between two). More than that defeats the environmental purpose of purchasing a reusable bottle in the first place. Also, be aware that some insulated bottles use lead solder. We’ve removed those from our list. We have some standards, after all.

Does your water need to be even cleaner? Check out our guide to the Best Backpacking Water Filters. Then get one of our Best Travel Mugs or Best Tote Bags.

Updated October 2026: We’ve added the Owala FreeSip Sway and Path Water Bottle as picks and the Bentgo Lift Chug as an honorable mention. We also moved the Owala FreeSip Twist to honorable mentions and ensured up-to-date prices and information throughout.

In This Guide

• A PSA on Lead
• The Best Reusable Water Bottles
• Compare Top 8 Reusable Water Bottles
• More Bottles to Consider
• Avoid These Bottles
• How Much Water Do I Need?
• How Do Insulated Water Bottles Work?
• How Should I Wash My Water Bottle?
• How We Test Reusable Water Bottles

Featured in this Article

Best OverallHydro Flask Standard Mouth Water BottleRead more$38

Amazon

Best for Straw LoversOwala FreeSip SwayRead more$35

Amazon (30-oz)

Best BPA-Free PlasticNalgene Sustain Tritan BPA-Free Water BottleRead more$17 $16 (6% off)

Amazon

Best Self-CleaningLarq Bottle PureVisRead more$99

Amazon

A PSA on Lead

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Some water bottle companies use lead soldering to manufacture their vacuum-sealed bottles. The Stanley Quencher tumbler is one of them. No amount of lead exposure is safe, but it poses particular risk for children and pregnant people. The company has confirmed that some pellets used to seal the bottom of the cup use lead, but unless you remove or damage the bottom of the cup, the lead will not come into contact with your beverage or skin.

The risk of exposure might be very low, but it should be zero. Given that many brands practice lead-free manufacturing, we think the proximity to exposure is unnecessary.

Best Overall

Photograph: Dick's Sporting Goods Save to wishlistSave to wishlist

Hydro Flask

Standard Mouth Water Bottle

$38

Amazon

$40

Hydro Flask

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• Available in 15+ colors
• No flavor transfer or metallic aftertaste
• Keeps cold drinks cold for 24 hours
• Keeps hot drinks hot for up to 12 hours

TIRED

• Experience fully dependent on cap choice

A longtime favorite of outdoorsy folks and anyone else who wants a water bottle that’s not easily damaged, Hydro Flask has staying power. That may be due in part to its customization capability: Pick your preferred type of bottle, cap, and color, and if you buy from Hydro Flask, you can also engrave many styles. You can choose one color for the bottle, another for the lid, and depending on those choices, yet another for the strap or straw. —Boutayna Chokrane

SpecsMaterialStainless steelSize Options (ounces)21, 24Lids AvailableStraw Cap, Flex Cap (included)Dishwasher-SafeYes

Best for Straw Lovers

• Photograph: Alexis Berger
• Photograph: Alexis Berger
• Photograph: Alexis Berger

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Owala

FreeSip Sway

$35

Amazon (30-oz)

$35

Target (30-oz)

$35

Owala (30-oz)

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• Available in a variety of colors
• Triple-layer insulation works well
• FreeSip spout with a built-in straw lets you drink in multiple ways
• Carry loop for easy transport

TIRED

• Cup is hand-wash–only
• Mouthpiece gasket requires involved cleaning

Owala perfected its FreeSip design with the Sway, which includes familiar features of other bottles in the line, like fun colors, triple-layer insulation, and a multifunctional mouthpiece that lets you sip through its straw or tilt the bottle upward to swig through its spout. Details that lift the Sway above its FreeSip cousins include its convenient top-carry handle that’s easy to hold, contoured side edges that let you get a comfortable grip while you drink, and its attached push-button opening with a locking mechanism that both lets you drink one-handed and also saves you from unfortunate spills.

Its materials are durable, it comes in four sizes (the 30-ounce option is plenty big for me without being too cumbersome), and the lid is dishwasher-safe. Even so, because the lid has a lot of edges and ridges where gunk can get trapped, I like to clean it by hand, which is a bit of a pain.

The wider top lid screws off completely, letting you add ice or easily pour in any other beverage, but it’s important to close it tightly before throwing it in your bag. The same warning applies to ensuring you’ve toggled on the mouthpiece lock. While the Sway is indeed leakproof when used as directed, the bottle is ripe for user-error spills, as I’ve learned the hard way. But if you look over to your passenger seat while you’re driving and see water pooling around your bottle because you forgot to close it correctly, at least you can snatch it up easily and plop it into a cup holder—a win that some other FreeSip models don’t offer. —Alexis Berger

SpecsMaterialStainless steel bottle; BPA-, lead-, and phthalate-free plasticSize Options (ounces)18, 30, 40, 64Lids AvailableFreeSip Sway lid (included)Dishwasher-SafeDishwasher-safe lid and hand-washable cup

Best BPA-Free Plastic

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Nalgene

Sustain Tritan BPA-Free Water Bottle

$17 $16 (6% off)

Amazon

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• Built to last, guaranteed for life by Nalgene
• Wide-mouth with screw-cap design
• BPA-, BPS-, and phthalate-free

TIRED

• Customers have reported leakage issues
• Can absorb the smell of beverages, making it best to use with water only

Today’s youths love their wide-leg jeans and Nirvana T-shirts, but ask any ’90s kid, and they’ll tell you that the look is incomplete without the water bottle of our times: the classic Nalgene. Originally made of bulletproof (and BPA-rich) Lexan, the Nalgene was the original name-brand water bottle, a symbol of good taste and outdoorsy vibes to be toted between Planet Hollywood and Blockbuster. The Nalgene had a complete chokehold on the premillennial culture, propping up water at a time when Surge and Josta were at such ready supply that human beings may well have stopped consuming plain water entirely were it not for the Nalgene. The brand has since replaced the chemical plastic with modern materials like Tritan, which is BPA-free and made of half-recycled plastic, but it otherwise remains the same: a perfect bottle, carrying a reasonable supply of fluid for the day with a secure screw-top lid, handy measurement lines, and a wide mouth for ice cubes and easy cleaning—unlike the bacteria-teeming straws on those adult sippy cups. —Martin Cizmar

SpecsMaterialBPA-free plastic/Tritan Renew copolyesterSize Options (ounces)32Lids AvailableWide Screw Cap (included)Dishwasher-SafeYes

Best Self-Cleaning

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Larq

Bottle PureVis

$99

Amazon

$99

Larq

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• PureVis technology eliminates up to 99 percent of bio-contaminants
• Double-wall vacuum insulation for hot and cold beverages
• No replacement filters

TIRED

• Doesn't filter water
• Requires charging

The Larq bottle eases all my germaphobic concerns with reusable water bottles. It uses a nontoxic UV-C LED light in the lid to sterilize the water every two hours (or more often, if prompted), which reduces funky odors and bacterial buildup. It’s double-insulated, made from BPA-free stainless steel, and a full charge lasts up to three weeks. Plus, the app lets you track your water-intake objectives—though honestly, it didn’t inspire me to drink more.

The company also sells the PureVis 2, but the filter is a hassle. It tends to slip into the bottle when full, and it chokes the water flow, which isn’t ideal when you’re wheezing in the middle of a hot yoga class. The filter also eats up a lot of space inside the bottle, so you’re left with less water than you’d think, and the mouthpiece is not the easiest to clean. So, while I love the idea of better-tasting drinking water, I just prefer its OG, filter-free version. —Boutayna Chokrane

SpecsMaterial18/8 stainless steel and BPA-free plastic capSize Options (ounces)17, 25Lids AvailablePureVis Cap (included), Filtered CapDishwasher-SafeNo. Hand-wash with warm, soapy water every so often.

Best Filter

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Brita

Premium Filtering Water Bottle

$29

Amazon

$18

Walmart

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• BPA-free
• WQA certified

TIRED

• Straw can be a hassle to clean
• Requires filter change every two months

The Brita bottle is a good portable filtering option for folks who are particular about the taste and smell of their H2O. This hard-sided plastic bottle is BPA-free, Water Quality Association (WQA)-certified, and available in a range of vibrant colors. The activated carbon block filter effectively reduces chlorine and other impurities. However, I find the straw difficult to clean, which can be a hassle. Also, you’ll need to replace the filter either every two months or after it purifies 40 gallons (whichever occurs first). Despite these drawbacks, it’s a great choice for tap water without a chlorine taste, and at an affordable price. —Boutayna Chokrane

SpecsMaterialBPA-free plasticSize Options (ounces)26Lids AvailablePush-Button Lid (Included)Dishwasher-SafeYes. Remove the filter and place all plastic components, including the bottle and lid, in the top rack only.

Best Tumbler

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Owala

FreeSip Tumbler (40 ounces)

$45

Amazon

$45

Target

$45

Owala

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• Available in a variety of colors
• Triple-layer insulated
• FreeSip spout with a built-in straw that lets you sip or swig
• Lid designed with a push-button and dedicated lock

TIRED

• Doesn't fit all cupholders
• Top-heavy

I love this tumbler because the built-in straw stays tucked away, so I don’t need to buy a separate straw cover that I’ll immediately lose. The lid has a push-button open with a lock, so I don’t hesitate to toss it in a bag, which is a luxury you don’t get with most tumblers. It’s also double-threaded for lefties and righties, and the tapered base fits into most cup holders. Like all Owala bottles, it’s BPA-, lead-, and phthalate-free.

A few caveats about the tumbler: The push-button lid doesn’t jam as much as the original FreeSip, but I have been caught in the splash zone, so open with caution. Also, I dropped it on my pinky toe once, and I’m 90 percent sure I have a hairline fracture. Handle this one with care. —Boutayna Chokrane

SpecsMaterialStainless steelSize Options (ounces)40Lids AvailableFreeSip Tumbler Lid (included)Dishwasher-SafeDishwasher-safe lid and hand-washable cup.

Best Sustainable

• Courtesy of Ocean Bottle
• Photograph: Kat Merck

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Ocean Bottle

Original (17 ounces)

$42

Amazon

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• Available in 10+ colors and three sizes
• Made of 90 percent recycled stainless steel and BPA-free
• For each bottle sold, Ocean Bottle funds the collection of 25 pounds of ocean-bound plastic

TIRED

• More expensive than some of its competitors

Though the Ocean Bottle is one of the smallest water bottles I own, it’s still the one I find myself grabbing most frequently for hikes and short trips. Made of 90 percent recycled stainless steel, it comes in 10-plus colors, is BPA-free, and is available in 17-oz (the size I have), 26-oz, and 34-oz options. It features a screw-cap lid, and the top also screws off about a quarter of the way down for easy filling or adding ice. You can also remove both segments at once and turn them upside down to transform the bottle into a leakproof cup. It’s also got a handy silicone carry loop. It’s pricey, but at least you won’t need to feel guilty about someday adding to the landfill graveyard of out-of-trend Stanleys and Hydro Flasks—for each bottle sold, Ocean Bottle funds the collection of 25 pounds of ocean-bound plastic. —Kat Merck

SpecsMaterialRecycled stainless steel, BPA-free plastic, siliconeSize Options (ounces)17, 26, 34Lids AvailableBrew Lid, Go LidDishwasher-SafeDishwasher-safe up to 140 degrees Fahrenheit. Here’s Ocean Bottle’s cleaning guide.

Best Recyclable

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Path

Refillable Water Bottles

$54

Amazon (12-pack of 20-oz bottles)

$24

Path (four-pack of 25-oz bottles)

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• Inexpensive and disposable
• Lots of style and water options

TIRED

• Easily dented
• Metallic taste intensifies with refills

If you have kids who are constantly losing their water bottle—or, like mine, refused for a while to carry a water bottle because they knew for a fact they would lose it—Path might be a good solution. These lightweight, refillable aluminum bottles are around $5 each and come pre-filled with still, sparkling, flavored, or alkaline water. The bottles themselves come in solid or ombre colors, seasonal patterns, or collabs like the just-released state collection. Refill them until they get lost or dented to oblivion (there’s even a spot on the bottle to mark how many times it’s refilled), then recycle it and grab a new one. Note that they are easily dinged up, so make sure your kid has a sufficiently padded lunchbox to protect it. Also, some kids with sensory needs may balk at the slightly metallic taste once they’re refilled. —Kat Merck

SpecsMaterialAluminumSize Options (ounces)20, 25Lids AvailablePlastic screw top or optional swing capDishwasher-SafeNo

Compare Top 8 Reusable Water Bottles

ProductWIREDTIREDMaterial(s)Dishwasher-SafePriceHydro Flask Standard Mouth Water Bottle (24 ounces)Available in 15-plus colors. No flavor transfer or metallic aftertaste. Keeps cold drinks cold for 24 hours and hot drinks hot for up to 12 hours.Experience fully depends on cap choice.Stainless steelYes$40Owala FreeSip Sway (30 ounces)Available in a variety of colors. Triple-layer insulated. FreeSip spout with a built-in straw that lets you sip or swig. Carry loop for easy transport.Cup is hand-wash only. Cleaning might be too intricate for some.Stainless steel, BPA-free Tritan plasticDishwasher-safe lid and hand-washable cup$35Nalgene Sustain Tritan BPA-Free Water Bottle (32 ounces)Built to last with its lifetime guarantee from Nalgene. Wide-mouth bottle with screw-cap design. BPA-, BPS-, and phthalate-free.Prone to leakage and spillage. May absorb the smell of beverages, so it’s best to use with water only.BPA-free plasticYes$17Larq Bottle PureVis (17 ounces)PureVis technology eliminates up to 99 percent of bio-contaminants. Double-wall vacuum insulation for hot and cold beverages.Doesn’t filter water. Requires charging.Stainless steel, BPA-free plastic capNo$99Brita Premium Filtering Water Bottle (26 ounces)BPA-free. WQA certified.Straw can be a hassle to clean. Requires filter change every two months.BPA-free plasticYes$29Owala FreeSip Tumbler (40 ounces)Available in a variety of colors. Triple-layer insulated. Features FreeSip spout with a built-in straw that lets you sip or swig. Lid designed with a push-button and dedicated lock.Doesn’t fit all cup holders. Top-heavy.Stainless steel, BPA-free Tritan plasticDishwasher-safe lid and hand-washable cup$45Ocean Bottle Original Bottle (17 ounces)Available in 10-plus colors and three sizes. Made of 90 percent recycled stainless steel and BPA-free. For each bottle sold, Ocean Bottle funds the collection of 25 pounds of ocean-bound plastic.More expensive than some of its competitors.Stainless steel, BPA-free plastic, siliconeYes, up to 140 degrees Fahrenheit$42Path Refillable Water BottlesInexpensive and disposable. Lots of style and water options.Easily dented. Metallic taste intensifies with refills.AluminumNo$5

More Bottles to Consider

Owala FreeSip Twist for $30: I now understand the hype around Owala’s FreeSip: It’s insulated, so the cold water stays icy all day, even during Midwest summers. Its innovative design caters to the majority; you can sip from either the built-in straw or the chug spout. And the lid is dishwasher-safe for easy cleaning, though I prefer hand-washing for extra care. The color options are another highlight, with various vibrant combinations available to suit any style. I do prefer the twist-cap version for daily use over the classic. I’ve noticed the latter’s push-button lock is a bit flimsy and tends to jam. But while I trust a twist cap for preventing spillage, it’s easier to lose than an attached lid, like what you get with top-pick FreeSip Sway. —Boutayna Chokrane

Bentgo Lift Chug Lid

Photograph: Alexis Berger

Bentgo Lift Chug Lid for $30: I assumed I wasn’t going to like this water bottle because, to me, its ring handle that sits atop the mouthpiece conjures an unappetizing toilet donut. But it turns out the handle is comfortable to hold and quite functional as a locking mechanism for the bottle. The push-button lid beneath the handle also works nicely. Sipping is a bit awkward—I had to do it sideways so my nose didn’t hit the plastic piece connecting the ring handle to the lid. I’m almost willing to overlook that detail because the triple-layer insulation of the BPA- and PFAS-free material works well to keep water cold, the wide-mouth opening offers welcome flexibility for filling and cleaning the bottle, it’s dishwasher-safe, and the color options are nice; however, the bottle is too wide for a standard cup holder, and that’s a tough swig to swallow. —Alexis Berger

Fellow Carter Carry Water Bottle

Photograph: Martin Cizmar

Fellow Carter Carry Water Bottle for $45: Fellow’s insulated water bottle is relatively tall and thin, with a squared metal carry loop that comfortably fits three fingers. The Carter holds temps for several hours (the brand claims the bottle can keep water cold for 24 hours, but mine was at room temperature by the end of a long day). What I really like about this bottle, though, is actually drinking from it. The Carter has a slightly tapered lip like a wine glass, which helps avoid spillage, and the ceramic interior coating means that the water coming out of the bottle tastes just like it did going in. If you like the minimalist look and need an insulated bottle that’s actually pleasant to sip from, the Carter delivers. —Martin Cizmar

Takeya Glow-in-the-Dark Sport Kids Bottle for $30: Takeya promises to “make hydration exciting” with its glow-in-the-dark bottle, so it’s important to point out that it’s just the band that glows, not the neon paint splatters. Nevertheless, this is a sturdy triple-insulated bottle with a big carry handle for clumsy or distracted little hands. The slim 18-oz size also fits in the side pocket of my two kids’ school backpacks. However, my 8-year-old is annoyed by the fact that the straw leaks air and whistles when he drinks. —Adrienne So

Created Co. Wander Bottle (26 ounces) for $36: I like that the Wander Bottle is created with 18/8 insulated stainless steel, but because the spout is made of BPA-free plastic, my water doesn’t taste like metal. The simple two-piece design makes for easy hand-washing, and the wide carry handle is comfortable to hold during hikes or other on-the-go situations. —Boutayna Chokrane

Yeti Yonder Water Bottle with Yonder Tether Cap for $54: Stainless steel water bottles keep drinks cold, but sometimes they feel like you’re lugging around a dumbbell. If you travel a lot or have little kids who maybe don’t need to knock themselves out with a heavy-duty Stanley, you might want something lighter (and safer). Former WIRED editor Adrienne So calls the 25-ounce Yeti Yonder her emotional support water bottle. It’s lightweight, made from 50 percent recycled plastic, and BPA-free. The cap is also well-designed to prevent spills if you’re a chugger. So’s bottle has survived many drops and playground tumbles without a scratch. But if you somehow do manage to damage it, it’s covered by a five-year warranty. Bonus: It’s dishwasher-safe. —Boutayna Chokrane

Dometic Chug Bottle

Photograph: Kat Merck

Dometic Insulated Chug Bottle for $45: The lids to these insulated bottles are interchangeable with plenty of accessories, like a tea infuser and handle (sold separately), for a customizable experience. The bottle kept ice intact for days in my tests; the only thing I didn’t like over time is that the straw (the bottom portion of which is metal) doesn’t reach all the way to the bottom on larger-size bottles, so you’re unable to access a fair amount of your drink. —Kat Merck

Klean Kanteen 32-oz TKWide Insulated Water Bottle with Twist Cap for $47: If you want one bottle to do it all, grab the Klean Kanteen TKWide. Its modular cap system lets you tailor hydration to your situation: Use the included twist cap with its built-in straw for everyday sipping, swap the Chug Cap for fast gulps during workouts, or screw on the Loop Cap for clipping to your backpack during hikes. Klean Kanteen even makes a Café Cap that turns your bottle into a spill-proof travel mug for your iced coffee. It’s made of 90 percent post-consumer recycled 18/8 stainless steel and is dishwasher safe, which is a huge bonus if you plan to use this thermos for protein shakes. Note: This bottle is for cold drinks only. —Boutayna Chokrane

Lifefactory 22-Ounce Glass Water Bottle with Active Flip Cap for $33: The active flip cap is convenient for quick sips, but you need to double-check that it’s closed before storing it. I’ve experienced a few spillage issues with this one. It comes in three sizes—the 12-ounce bottle is perfect for kids, but the largest is 22 ounces and could be bigger, especially for $35. Like most (if not all) of the glass bottles I recommend, this one also includes a protective silicone sleeve that provides a better grip and an extra layer of security. —Boutayna Chokrane

bkr Spiked Big Bottle 1L for $62: Glass water bottles are nontoxic and remain the cleanest, greenest choice. Bkr’s signature silicone protects the glass from shattering and also adds an edgy, grippy texture. It won’t dent or clang against surfaces, and if you drop it in a crowded room, it lands silently. —Boutayna Chokrane

Ello Cooper Twist Stainless Steel Water Bottle for $23: The Ello Cooper Twist Stainless Steel Water Bottle is vacuum-insulated, double-walled, and features a screw-on lid with a carry handle. The spout is a matter of personal preference, but I like the ceramic opening. If you prefer a chug cap, it’s a great option. —Boutayna Chokrane

Camelbak Eddy+ for $12: The Camelbak Eddy+ is a durable, lightweight, recycled plastic bottle with a straw lid. Adrienne So has had several of these for years. Just be sure to let the chew top air out daily because it’s prone to collecting mold if left damp. —Boutayna Chokrane

Pura Big Mouth Insulated Bottle for $47: Pura bottles are thin, light, and made entirely from stainless steel, so there’s no plastic or powder coating (which also means they may not withstand drops and bumps). They’re Made Safe Certified, meaning they’re made without 15,000 ingredients identified as harmful to human health and the environment. I don’t love the silicone lids, as they’re very thin and floppy, but you can unscrew the whole cap to sip right from the metal rim. —Boutayna Chokrane

Avoid These Bottles

Water.io Daily+ for $100: This is a bottle that tracks your sips and reminds you to drink, which sounds great, but in practice, is not the best. The battery life is short, lasting for two to three days, and it requires a proprietary charger. For $100, I’d expect more perks, like filtration or self-cleaning tech, but this bottle doesn’t deliver any of that. The water also picks up a metallic aftertaste that is far from refreshing. —Boutayna Chokrane

Air Up Water Bottle for $40: This bottle uses scented rings to try to trick your brain into thinking it isn’t drinking plain water. WIRED writer Boone Ashworth was unimpressed. It didn’t smell great, and you can’t use the bottle without one of those rings. The beauty of a reusable bottle is that you spend money once and get free water for years. Here, you have to keep buying refills. —Boutayna Chokrane

Frequently Asked Questions

How Much Water Do I Need?

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The eight-glasses rule isn’t exactly accurate, but it’s a solid starting point. Since water intake is highly individualized (kind of like the bottle itself), it’s best to consult your doctor about the right amount for you. Several lifestyle factors can influence your hydration needs. If you’re active or sweat a lot, for example, you generally should increase your intake to make up for losses. Remember that while warmer temperatures can make us thirstier, drinking too much water can cause overhydration and sodium levels to drop to dangerous levels in a condition called hyponatremia.

Certain medications can lead to water retention, which is another reason why it can’t hurt to ask your physician about your personal ideal water intake during your next check-up. In the meantime, if you’re not thirsty and your urine is colorless or light yellow, you’re likely doing great, sweetie.

How Do Insulated Water Bottles Work?

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An insulated water bottle consists of a double-wall construction with insulating materials that prevent heat transfer. Insulated bottles are heavier and can typically hold less water compared to their uninsulated counterparts, given similar exterior dimensions. However, the advantage is that insulated models are typically vacuum-sealed, allowing them to better maintain the temperature of the liquid inside for far longer periods.

Condensation is typical in non-insulated water bottles, where beads of water form on the exterior of the bottle. In this case, you may end up avoiding packing the bottle inside your bag to protect your personal items from your sweating water bottle.

Insulated bottles are made of stainless steel and other similar durable, damage-resistant materials. While they’re typically more expensive because of the higher-quality materials, advanced technology, and complex manufacturing process, insulated water bottles may also have a longer lifespan than their noninsulated counterparts. This can minimize waste and also save you money in the long run as a result of needing to buy fewer replacement water bottles over time.

For hiking and outdoor climbing trips, you may prefer uninsulated bottles because they are lighter weight, and your concern is likely having enough water rather than cold water. For most other purposes, insulated options work just fine.

How Should I Wash My Water Bottle?

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Even if they never hold anything but water, bottles get gross. Mold can grow quickly, especially if you leave the cap on. Straws and mouthpieces accumulate bacteria, oils, and grime from your mouth, and any dirt and dust they pick up in your backpack.

Some bottles can go right in the dishwasher, but be sure to take everything fully apart first, like any silicone pieces that can trap bacteria. For lids that have more nooks and crannies, I recommend hand-washing by soaking them in soapy water and then scrubbing.

Get yourself a bottle brush and straw brush—many kits are available that include both. Even if you don’t use straws, the smaller brush is a helpful tool for getting into any crevices. There are special bottle-cleaning tablets around, but cleaning with regular dish soap works perfectly fine.

Plastic bottles tend to trap odors over time. You can fix this by putting a teaspoon of bleach and a teaspoon of baking soda in the bottle, filling it up with water, and letting it sit overnight. Rinse it out well the next day.

How We Test Reusable Water Bottles

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We test every new water bottle for at least two weeks; however, most top picks are ones that members of the WIRED team have loved and carried for months or years. Here’s what we look for:

• Design: First and foremost, we note which materials are used and evaluate whether they feel safe, sustainable, and durable. Because taste can also make or break a bottle, we evaluate whether materials retain odors or leave water tasting metallic or plasticky. We also consider how simple it is to replace parts like lids and straws.
• Portability: We consider the size, weight, cup holder compatibility, and whether it’s designed with ergonomic features like a carry loop.
• Durability: We drop bottles, toss them in totes, and use them daily to see if they dent, crack, or leak. We’ll also twist lids aggressively and test whether the hinges hold up after dozens of openings.
• Ease of use and cleaning: Overall, we’ll judge how intuitive the bottle is to drink from and refill. Each bottle also goes through several rounds of hand-washing and dishwasher cycles (when safe) to evaluate how easy it is to clean and whether odors or stains linger.
• Insulation: For insulated bottles, we’ll fill them with hot and ice-cold water for the advertised time to track how well they maintain temperature.

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