Care and Use

Your Klean Kanteen is made from durable, 18/8 (#304) stainless steel and is designed to be lightweight yet extremely strong. If you take care of it, it may very well last your lifetime. Here are a few tips to help keep your bottle fresh and clean over the long haul.

Washing Your Bottles, Cups, Canisters and Caps

  • Our Classic and Wide-mouth bottles (in Brushed Stainless finish) are dishwasher safe. As are our pint cup and single-wall food canisters.
  • We recommend handwashing painted and all vacuum insulated bottles, vacuum insulated tumblers and vacuum-insulated canisters.
  • For thorough cleaning, you can use warm, soapy water and a bottle brush. We also recommend an old-fashioned cleaner: mixing water and baking soda making a nice thick paste.
  • If your bottle or cap seems to be retaining flavors or smells, use diluted vinegar and soak them in it overnight. NOTE: the Stainless Unibody Bamboo Cap should not be soaked or immersed.
  • All Kid Kanteen and Classic caps (except the Stainless Unibody Bamboo Caps) and all Wide caps are dishwasher safe. The Café Cap is dishwasher safe and the rotating piece on the top also pops out for thorough cleaning.
  • The original Stainless Loop and Flat Caps must be handwashed because they were constructed with two materials: stainless steel (threads) and polypropylene (top), because of such they must be handwashed to ensure that water doesn’t work itself into the stainless cavity.

Protecting the Paint on Painted Bottles

When we debuted our painted bottles, the most important thing to us at Klean Kanteen® was to find a safe and durable paint that also looked dynamite. We reviewed and tested dozens of different paints and selected an acrylic paint that contains no toxins or lead. Just like anything that's painted, it is possible to chip or scratch the paint on your Klean Kanteen. To prolong the life of your paint, handwash your bottle and don't use abrasive agents to clean it.

Painted Kanteens with Kids or Toddlers

We've also heard from some parents that their child has chewed on a painted bottle and ingested some of the paint. If this happens, don't worry, the paint is perfectly safe. Though our paint is safe, we recommend our stainless steel finish bottles for small children who like to chew on things.

FAQs about Care and Use

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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 and food industry. Of course we also have a stainless steel Baby Bottle made just for those purposes!
Can I use a Klean Kanteen for carrying alcohol?
Yes. In fact, our 27oz/800ml Classic was designed to hold a bottle of wine. We also know that many people use the 12oz Classic to carry spirits and the 64oz Wide as a Growler to transport a half gallon of beer. Speaking of beer, the 16oz Steel Pint Cup was designed to displace single-use beer and wine cups. All our products are made of 18/8 food-grade stainless steel, often used in the beer and wine making industries.
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 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.

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

If you have a vacuum insulated Kanteen, 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 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 painted 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 any Insulated Kanteen. Heating a Kanteen 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 bottle with a long neck and a small rolled lip at the edge, you have a Classic, NOT an Insulated. 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?

Classic and Wide bottles (in Brushed Stainless finish) are dishwasher safe. We recommend handwashing all painted Kanteens and all Insulated styles.

For daily cleaning, rinse your Kanteen 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.

All the newer Classic Caps (except the Stainless Unibody Bamboo Cap) and all Wide caps are dishwasher safe. The Café Cap is also dishwasher safe and the rotating piece on the top pops out for thorough cleaning.

NOTE: The original Stainless Loop and Flat Caps are not dishwasher safe. If your Classic cap is two separate pieces and has stainless threads with polypropylene on the top, you have the original Classic caps that needs to be handwashed.

Visit our Care & Use page for more information.

I can't get the smell/taste of coffee (or something else) out of my Kanteen. Help!

Your Klean Kanteen is made from high quality food grade stainless steel that will not retain flavors or smells after you've thoroughly cleaned it. If you've already given it a good scrub with a bottle brush and warm soap water, try mixing a quarter cup of vinegar and 3-4 tablespoons of baking soda in warm water and let it soak in your Kanteen overnight.

Often the problem is in the cap, especially the Café Cap. Make sure you pop your Café Cap apart and really scrub it well, including around the tiny o-ring on the removable part of the cap. You can also soak any cap overnight (except the Stainless Unibody Bamboo Cap) in the same mixture of vinegar and baking soda you use for soaking the bottle.

Visit our Care & Use page for more information.

My Kanteen has tea stains inside that I can't get out.

Make a paste using a little bit of vinegar and baking soda and give it a good scrub. The baking soda is an all-natural abrasive that will help get the stains out. You can also soak it overnight in a mixture of about a quarter cup of vinegar and 3-4 tablespoons of baking soda.

Visit our Care & Use page for more information.

My Kanteen froze and 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

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

Klean Kanteens 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.

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

For More Information

Check out our complete FAQs page for other commonly asked questions about our products, including functionality, care and maintenance, warranty, health and safety, and more.

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