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Most questions received at Klean Kanteen® are answered below. In order to avoid delays and speed up your answer, please review them to see if your question is answered here.

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The Klean Kanteen® Difference

There are so many reusable bottles to choose from. Why should I buy a Klean Kanteen®?

In 2004 when we released the first Klean Kanteen® bottle, the only other options out there were polycarbonate plastic bottles or aluminum bottles lined with plastic resin or epoxy.

The reason Klean Kanteen exists is because we wanted to give consumers a safe, healthy, BPA-free alternative to plastic, a bottle that's reusable, environmentally sustainable and durable enough to last a lifetime. We chose to make our bottle from high-quality, 18/8, food-grade stainless steel, one of the healthiest and most durable materials available.

Some of the key features that set Klean Kanteen® apart include easy to clean rounded corners and threads; high quality, food-grade materials that are BPA-free and don't retain or impart flavors; and durable, all-stainless construction including bottle threads.

We also set up our company and our manufacturing to be environmentally responsible and sustainable from the beginning. We oversee our manufacturing every step of the way, from the sourcing of the basic materials to the retail floor and we're constantly working to cut waste and operate more efficiently. Read more about our sustainability efforts.

What kinds of products does Klean Kanteen® make and what are the differences?

Klean Kanteen® has four main bottle lines: Kid Kanteen®, Kanteen® Classic, Kanteen® Wide, and Kanteen® Insulated. In addition, we now offer the Kanteen® Reflect, featuring no paint or plastic and stainless unibody bamboo cap, as well as the Kanteen Steel Pint Cup, with the goal of replacing single-use plastic cups. The Kid Kanteen® line currently consists of a Sippy bottle for toddlers. The Kanteen® Classic is the original Klean Kanteen®, the one with the longneck design. The Kanteen® Wide is a wide-mouth bottle with 100% stainless interior, and the Kanteen® Insulated features double-walled, vacuum insulation for amazing insulating performance. Visit the Kanteen 101 pages to compare the Classic and Wide lines, and the main Kanteen® Insulated page to learn more about our insulated bottles.

Which is better, stainless or aluminum?

While aluminum is lightweight, it can leach harmful substances and chemicals when it gets hot or comes in contact with anything acidic. Studies have also linked aluminum exposure to Alzheimer's disease. To ensure that the drinks inside aluminum bottles are safe, the bottles must be lined with something.

The most common materials used to line aluminum bottles include plastic resins or baked-on epoxy, both of which can leach BPA and other harmful chemicals or can get scratched, exposing the aluminum underneath. Ceramic is another material used to line aluminum bottles, but it's more rigid and can crack.

Of even greater concern is the fact that many companies won't release information about what the liner on their aluminum bottles is actually made from. The liner can also retain flavors, which can make your drinks taste funky.

The stainless steel used to make Klean Kanteens® is time-tested, safe and completely free of BPA, phthalates, lead and other harmful substances. It's fine for acidic beverages or foods, and doesn't retain or impart flavors. That's why it's the material most commonly used in food preparation and by the brewing and wine-making industries.

What's the story on the Sport Cap 2.0?

Klean Kanteen® redesigned the sport cap, releasing the Sport Cap 2.0 in the spring of 2009. The Sport Cap 2.0 performs extremely well, delivering a high flow rate (3x greater than the original cap) with almost no effort. It's also much quieter than the old sport cap, though the air flowing back into the bottle as you drink does make a soft noise.

How do I find out about special deals, discounts and promotions?

If you want to be the first to find out about specials and discounts, join our Facebook community by becoming a fan. We also post deals and special promotions on Twitter and send out all kinds of newsy tidbits and info through our email newsletter.

Health and Safety

Why was the Sport Cap 2.0 recalled and where can I get more information?

Klean Kanteen® received six consumer reports relating to the spout tip of Sport Cap 2.0 breaking or cracking after being dropped, which could pose a potential choking or ingestion hazard. There have been no incidents of factual choking or ingestion reported.

We replaced the spout tip with a new one made from the same BPA-free, polypropylene, but the formulation is slightly different. The new spout tips are six times more impact resistant and stronger than the original spout tip on the Sport Cap 2.0.

Visit our Safety Notice page for information about the recall including how to identify if you've got a recalled cap and how to get your recalled Sport Cap 2.0 replaced.

Do Klean Kanteens® have BPA?

No way. Every Klean Kanteen® ever made is totally free of BPA and other harmful substances.

The whole reason we founded this company was because we read the early studies linking BPA to a number of illnesses and we wanted to give consumers a safe, healthy alternative to plastic and lined aluminum bottles.

We chose 18/8, food-grade stainless steel instead of aluminum or plastic because the metal is inherently safe and toxin-free. Stainless steel is made of many elements and minerals that come from the earth, including some of the very same minerals recommended by the FDA as part of a healthy human diet.

Food-grade stainless steel is used in the brewing, food and winemaking industries too. It's the material of choice because it doesn't retain or impart flavors.

All our caps are BPA-free polypropylene (pp#5) too, and we offer stainless steel cap options for Classic bottles as well.

Do Klean Kanteens® have a liner?

No. All Klean Kanteen® products are made from high quality, 18/8, food-grade stainless steel that's totally free of BPA and other harmful substances.

Because stainless steel is inherently safe, we don't need to coat the inside of the bottle with a plastic or epoxy lining, which is one of the main differences between a stainless steel Klean Kanteen® and aluminum bottles.

Why do Klean Kanteen® caps have plastic at all?

Caps made from solid stainless steel would be both heavy and costly. Caps made from safe, BPA-free polypropylene (pp#5)are lightweight and also cost-effective, enabling Klean Kanteen® to create a handcrafted product of exceptional quality at a reasonable price.

In the case of the Sport Cap 2.0, it's also a safety issue because people drink from their bottles while engaging in sports like cycling and running. Polypropylene is very durable, but it's also a softer plastic, which means you're less likely to damage your teeth if you hit a bump on the trail while you're drinking.

On Classic bottles, many people disliked the squeaking of the stainless caps, which are metal-on-metal because of the internal thread design of the bottles. Klean Kanteen® now offers all cap styles for Classic bottles in an all-polypropylene option.

The caps for all Klean Kanteen® Wide bottles have stainless steel on the inside. You can order stainless caps for Classic bottles as accessories in the Flat and Loop style.

Are the polypropylene (pp#5) caps safe?

Klean Kanteen® uses polypropylene (pp#5) because it contains no Bisphenol A (BPA), a chemical that leaches from some kinds of plastic and has been linked to various diseases. Polypropylene has no known leaching characteristics and is softer than other types of plastic.

The caps for all Klean Kanteen® Wide bottles have stainless steel on the inside and stainless cap options are available as accessories for the Classic bottles in the Loop and Flat cap styles.

What is stainless steel and what does 18/8 stand for?

Stainless steel is an iron-containing alloy made from some of the basic elements found on earth: iron ore, chromium, silicon, nickel, carbon, nitrogen and manganese. The properties of the final metal change depending on varying amounts of these elements. More than 57 stainless steels exist and are sold as standard alloys on the market.

Klean Kanteens® are constructed from high-quality, 18/8, food-grade stainless steel. The numbers stand for the percentages of chromium and nickel in the steel, 18% and 8% respectively. Chromium increases the metal's hardness and nickel gives it strength. Together they also make stainless steel highly resistant to stain or rust.

Stainless steel is easy to clean, durable, inert and sanitary. That's why it's the material of choice among the food processing, dairy and brewing industries.

What is nickel and how can it affect my health?

Nickel is a naturally abundant element found in the earth's crust, soil and ocean floor. It is generally resistant to corrosion and is therefore used to make metal alloys such as stainless steel.

Approximately 10-15% of the population is sensitive to nickel, but the health effects of nickel are highly dependent on the manner and degree of exposure. The stainless steel used to make Klean Kanteens® has a low nickel content and is the preferred material used by breweries and dairies.

Do Klean Kanteens have hexavalent chromium, and could I be exposed to it by drinking from a Klean Kanteen?

Stainless steel does not contain hexavalent chromium; so you don't need to worry about exposure to hexavalent chromium from your Klean Kanteen. Hexavalent chromium has been found in tap water in some municipalities. We recommend that you check with your local water provider and get a copy of their most recent water quality reports. They're public record and should be made available to you upon request. The tests may even be available online.

Does the paint on a Klean Kanteen® contain lead?

No way. When we introduced our colored bottles, we wanted to find a safe and durable paint that also looks fantastic. We reviewed and tested dozens of different paints and selected an acrylic paint that contains no toxins or lead. We test the paint regularly and though it is safe, we recommend the Brushed Stainless finish bottles for small children who like to chew on things.

My child chewed on a Klean Kanteen® and might have eaten some paint. Should I be concerned?

No. The paint on Klean Kanteen® bottles is a nontoxic, acrylic, resin-based finish that's mostly water and is totally free of lead and toxic chemicals. So you've got nothing to worry about if your child ingested some paint! That said, we do recommend the Brushed Stainless finish for small children who like to chew on things..

Manufacturing

Why are Klean Kanteens® made in China?

The very first Klean Kanteen® was created to promote healthy living and respect for the environment by giving people an affordable alternative to plastic and lined aluminum bottles.

Klean Kanteen® has always shared many of the concerns you, our customers, have expressed about manufacturing the bottles in China. Before a single bottle was ever produced, Klean Kanteen® set in place checks and balances to ensure that our bottles are produced safely, sustainably and that the people making Klean Kanteens® are treated well and paid fairly. By manufacturing in China, Klean Kanteen® can provide a handcrafted bottle of exceptional quality at a reasonable price.

For more information about our commitment to operating Klean Kanteen® sustainably and manufacturing our products in a way that's environmentally responsible with fair labor and human rights standards, read our sustainability and responsibly made pages.

Is Klean Kanteen's stainless steel from China safe?

Yes. We have representatives from Klean Kanteen® living in China who visit our factories regularly. They work as liaisons to ensure all Klean Kanteen® products are produced with respect for the environment and that the workers in the factories are safe, protected and paid a living wage. In addition, a rotating group consisting of the owners and various employees visits the factory two to three times a year.

We currently perform regular product testing through third-party, accredited laboratories to meet regulatory requirements and our own high standards for product safety.

Klean Kanteen® is and will continue to be one of the safest and most sustainable beverage containers on the market.

Technical Specifications

How much does a Kanteen weigh?

Klean Kanteen® bottles are lighter than they look. We've tested various wall thicknesses and struck a balance between durability and weight. The stainless steel walls in our bottles are significantly thicker than other, lower quality bottles on the market. They don't dent or bend easily, but they're still lightweight and easy to carry.

Classic Bottles:
Capacity	Weight*
12 fluid ounces (355 ml)	3.75 ounces
18 fluid ounces (532 ml)	5.125 ounces
27 fluid ounces (800 ml)	6.125 ounces
40 fluid ounces (1182 ml)	9.375 ounces
*doesn't include cap
Wide Bottles:
Capacity	Weight*
12 fluid ounces (355 ml)	3.375 ounces
18 fluid ounces (532 ml)	4.625 ounces
27 fluid ounces (800 ml)	6.25 ounces
40 fluid ounces (1182 ml)	7.375 ounces
64 fluid ounces (1893 ml)	11.625 ounces
*doesn't include cap
Wide Insulated Bottles:
Capacity	Weight*
12 fluid ounces (355 ml)	7.125 ounces
16 fluid ounces (473 ml)	8.75 ounces
20 fluid ounces (591 ml)	10.25 ounces
*doesn't include cap

Using and Cleaning your Klean Kanteen®

Can I fill a Klean Kanteen® with acidic beverages such as apple juice or orange juice?

Yes. Acidic beverages will not corrode or damage the high-quality stainless steel.

Can I use a Klean Kanteen® for milk, breast milk or formula?

Absolutely. Your Klean Kanteen® is food-grade stainless steel, the same stuff they use in the dairy industry.

Can I use a Klean Kanteen® for carrying alcohol?

Yes. In fact, we make a special bottle, the Wine Karafe™, designed just for wine. We've also heard that many people use the 12oz bottles to carry spirits or the 64oz Wide as a Growler for a tasty half gallon of beer.

Do Klean Kanteens® sweat?

It depends on which bottle style you're using. Our Classic and Wide lines are single-walled.If you have a cold drink in them and it's hot out, you're going to have condensation build-up on the bottle.

Our Wide Insulated bottles are made using durable, double-walled construction and vacuum insulation, which has amazing insulating properties. Because they're insulated, these bottles will not have condensation build-up on the outside, regardless of what's inside them or the temperature outside.

The best solution to naturally occurring condensation on Classic and Wide bottles is to put your Klean Kanteen® in an insulated sleeve such as the insulated totes made by our partner, Built®. Whatever size Klean Kanteen® you prefer, there's a Built® tote in a color and style you'll love. Check them out on our accessories page.

Can I put hot liquids in my Klean Kanteen® or use it like a thermos?

If you have a Kanteen® Wide Insulated bottle, absolutely! Our high-performance, double-walled, vacuum insulated bottles are designed to function as a thermos, a to-go mug and food storage container and will keep contents hot or cold for up to six hours and iced drinks chilly for up to 24.

We do not recommend using single-walled Klean Kanteen® Classic or Wide bottles for hot beverages because you can burn yourself. Warm beverages can be used at your own personal comfort level. They're fine for cold beverages, but unlike the Insulated Kanteen®, condensation will form on the outside.

Can I put my Klean Kanteen® in the freezer?

No. The force of liquids expanding as they freeze can cause your Klean Kanteen® to become deformed and can also break the weld that holds the bottle together, so we strongly advise against it. Freezing any Klean Kanteen® (Classic, Wide or Insulated) will void the one-year warranty against manufacturer defects.

Can I put my Klean Kanteen® on a stove?

In a pinch, single-walled Kanteen® Classic and Wide bottles with the Brushed Stainless finish can be placed on a fire or a stove as long as you take the cap off. Do not do this with a colored bottle, as it will damage the paint.

But it's VERY important that you know what kind of bottle you have because this is absolutely NOT an option with an Insulated Kanteen®. Heating a Kanteen® Wide Insulated will damage the bottle and voids the one-year warranty.

It's pretty easy to tell what kind of bottle you have, even if you've had your bottle so long the logo's worn off. Insulated bottles only come in the wide-mouth design, so if you have a Classic, a bottle with a long neck and a small rolled lip at the edge, you have a Classic. Insulated bottles also have a separate, extra shiny piece at the bottom and come in different sizes (12oz, 16oz, and 20oz) than the single-walled Wide bottles (12oz, 18oz, 27oz, 40oz and 64oz).

How do I clean my Klean Kanteen® and my caps?

Kanteen® Classic and Wide bottles in Brushed Stainless are dishwasher safe. We recommend handwashing colored bottles and Insulated bottles.

Classic Loop and Sport Caps made of polypropylene (pp#5), and the Wide Café Cap are dishwasher safe. The Café Cap is also dishwasher safe and the rotating piece on the top also pops out for thorough cleaning.

All Classic and Wide caps with stainless steel on the inside should be handwashed. The Classic polypropylene Flat Cap should also be handwashed. An easy way to remember is that if your cap is all plastic and hollow on the inside, it can go in the dishwasher. Otherwise, handwash it.

For daily cleaning, just rinse your bottle with warm, soapy water and let it drain and dry in your dish rack with the mouth downward so water can drain out.

For thorough cleaning, you can use warm, soapy water and a bottle brush. We also recommend an old-fashioned cleaner: diluted vinegar or water and baking soda.

Visit our Care & Use page for more information.

I left my Klean Kanteen® in my car and it froze. Now the bottom is bulging out. Is there any way to fix it?

Freezing your Klean Kanteen® voids the one-year warranty because the expansion of the water can put so much force on the steel that it causes it to bulge or even split at the weld. Sometimes nothing at all happens. It depends on whether the cap was on, and how much liquid was in the Kanteen®.

But you're not the first person to accidentally freeze liquid in your bottle. It's still safe to drink from it, and freezing the bottle does not alter the safety or composition of the food-grade stainless steel in any way.

If the bottom of your bottle has become deformed due to freezing, it's usually pretty easy to pop it back into place. First try putting the mouth of the bottle on a flat surface and pushing on the bottom of the bottle with the palm of your hand.

If that doesn't work, flip it over and put the bottom of the bottle on a hard, completely flat surface. Take the cap off and put a board or a book on top of the opening. Then push straight down onto the bottle using your body weight.

In many cases this will flatten out the bottom of your bottle.

You can also use a rubber mallet, but we DO NOT recommend trying to bang out the dents with a hammer as it tends to cause more damage. If nothing you try works, you can also send it back to us and we'll do our best to repair it for you. If you choose this option, call (800) 767-3173 and ask for the repairs department or email original@kleankanteen.com.

I dropped my Klean Kanteen® and dented it. Is there any way to get the dents out?

Klean Kanteen® bottles are made of heavy gauge stainless steel and outperform all other metal bottles in independent tests. But they can dent if you drop them. Our one-year warranty covers manufacturer's defects only, not damage caused by using or dropping your bottle.

If you dropped your bottle and dented it, odds are the dent is inward. In some cases you can put a wooden dowel or a wooden kitchen spoon inside the bottle and tap on the other end with a hammer to push the dent out. DO NOT use a metal object to bang the dent outward as the metal can get inside your Kanteen®. You can also further damage or even puncture your bottle.

Even if you've dented your bottle, it's still totally safe and free of harmful substances. Because every Klean Kanteen® made if 18/8 food-grade stainless steel through and through with no liner on the inside, a dent, no matter how large, will not change the composition of the metal.

Ordering

Where can I buy Klean Kanteens®?

You can order all the products we offer here on our site. You can also use our Store Locator to find retailers near you that sell Klean Kanteen® products. Just keep in mind that not every dealer sells every Klean Kanteen® product. If you're looking for something specific, it's always a good idea to call first and make sure your local store carries the product you want.

Can I order a Kanteen® Classic with a stainless cap instead of a polypropylene cap?

Yes, separately as an accessory. The standard cap options for Klean Kanteen® Classic bottles change depending on the size and color you're ordering. When ordering the more popular sizes and colors, you can choose between either a BPA free polypropylene Sport Cap 2.0 or a polypropylene Loop Cap. The Sport Cap 2.0 is standard issue on all other Klean Kanteen Classic® bottles.

If you want a Stainless Loop or Stainless Flat cap for your Klean Kanteen® Classic, you can order it separately as an accessory.

Warranty

My Sport Cap broke. Will you replace it?

Absolutely. All Klean Kanteen® bottles, caps and lids have a one-year warranty against manufacturer's defects. Please send us your damaged goods along with your return address and we'll replace them free of charge. If you have questions or comments, email them to warranty@kleankanteen.com

My Sport Cap (or Café Cap) leaks. Will you replace it?

The Sport 2.0 and Café caps are not designed to be leakproof. If you want a leakproof cap, you'll need to order a Loop or Flat cap for your bottle.

What do you consider normal wear and tear for the paint on colored Klean Kanteens®?

Under normal use, the paint on the colored Klean Kanteens® will not flake or chip off. When we tested paints for our colored bottles, safety was our first concern but durability was a close second.

The paint performs well in lab tests. Many of us at Klean Kanteen® also use the colored bottles so we've been putting them to the test in the real world too. Sure, if you drop your Klean Kanteen® or jam it into a metal water bottle cage, you can scratch it. It's also possible to scrape off the paint if you try hard enough, just like any other painted surface.

But if your paint is flaking or peeling off, you might have gotten a bottle from a bad batch, which does happen occasionally. If that's the case, it's covered by our warranty and we'll replace it at no cost to you. Check out our Returns & Exchanges page.

To prolong the life of your colored Klean Kanteen®, we recommend hand washing it with mild detergent. The Brushed Stainless finish is the best choice for ultimate durability.

My Sport Cap 2.0 makes a whistling or chirping sound. How do I make it stop?

Sports caps were originally designed and used with squeezable plastic drinking bottles. Because you cannot squeeze stainless steel, we had to alter the design so that air could get back into the bottle as you drink.

The little white dot on the top of the Sport Cap 2.O is a leak-resistant silicone valve, which allows air back into the bottle so water can flow out. The noise that you hear is air moving through the valve.

Older sport caps do make a whistling noise when used. While the Sport Cap 2.0 is significantly quieter than the old sport caps, it still makes a little bit of noise as air passes through the valve into the bottle. But if your Sport Cap 2.0 is making a loud chirping or whistling noise, the silicone valve may be in the wrong position or may be dirty or clogged.

You can remove the valve and clean it, but it’s very difficult to put it back. Instead, we recommend thoroughly cleaning the inside of the cap with a bottle brush and warm, soapy water and also pushing the little silicone nub on the top of the cap to the side and cleaning around it. You can also rotate the valve to make sure it’s positioned correctly.

Another trick is to loosen the cap just a tiny bit, just make sure it’s still tight enough to keep the bottle from leaking. The silicone vent will work better if the cap is not over-tightened.

If your Sport Cap 2.0 continues to be louder than normal, or if you are not satisfied with the product, please contact our returns and warranty department by calling (800) 767-3173 ext. 319 or by emailing warranty@kleankanteen.com

How do I fix a leaky Sippy Cup?

The silicone disk can loosen with time, which allows liquid to escape through the small vent hole. To remedy this, try pulling the disk off, cleaning it with warm, soapy water, then popping it back on to the adapter. You might also need to replace the silicone ring on the inside of your cap. Call customer service at (800) 767-3173 ext. 319 for information on how to get a new silicone gasket for your cap.

Do I have rust stains in my bottle?

The food-grade stainless steel in a Klean Kanteen® is highly rust resistant. If your bottle appears to have rusted, it’s probably just a mark left behind from the electropolishing process, which smooths the surface of the metal and makes it shiny. Sometimes electrolytes left on the surface turn a rust color, but it’s harmless.