Frequently Asked Questions

In order to avoid delays and speed up your answer, please review the list of questions below to see if your question is answered here. If your issue is not addressed, visit our Care and Use page for more information, or our Warranty page to submit a request.

General Questions

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

In just one year, the USA used 58 billion to-go cups and 35 billion plastic water bottles. As a family owned company, Klean Kanteen were on a mission in 2004 to introduce the first stainless steel, BPA-free, reusable water bottle because they wanted a non-toxic solution to single-use rubbish. Today, Klean Kanteen are a certified B-Corporation company. In a category filled with a variety of material options and offerings oriented towards innovation or product for product's sake, the simplicity of Klean Kanteen is unique. Many plastic bottle brands claim to be BPA-free and non-toxic. Whilst that may or may not be accurate, more and more studies show growing concern over plastics, including plastic liners in aluminium bottles. When it comes to health and safety for Klean, earth-based (rather than man-made) materials like stainless steel and silicone are the preferred materials.

Products undergo some of the most rigorous consumer products testing available. In fact, they exceed multiple high-bar standards globally such as FDA, CPSIA, California Prop 65 and REACH. They carry a Strong as Steel™ guarantee to help reduce the collective reliance on plastic and provide opportunities to make healthier choices. The Klean Design approach is responsible and considers health, safety, versatility, functionality, beauty and end of life into each product solution. Klean Kanteens are also designed with rounded corners so that they are easy to clean and won't trap gunk or particles. If the products don't solve a problem around waste or health, they don't get made. Klean Kanteen believe in living a Klean lifestyle - sometimes all it takes is a simple solution #BringYourOwn

Where can I buy Klean Kanteen?

Klean Kanteen UK are the exclusive importer and distributer for Klean Kanteen in the UK and Ireland. Products are available online at or available for purchase at a variety of retailers near you. Bear in mind that not every retailer sells every Klean Kanteen style or product. If you're looking for something specific, it's always a good idea to call first to make sure your local store has stock of the product(s) you want.

Where are Klean Kanteens made?

Klean Kanteen products are designed in Chico, California and responsibly made in China. Currently, there aren’t qualified stainless steel water bottle manufacturers in the US – most brands are made in either China or India. We are proud to have a long relationship with these facilities and their staff and consider them part of our Klean Kanteen family.

How do I return or exchange an item?

If you purchased a product from Klean Kanteen UK and wish to return or exchange it, please see our Returns page to initiate this process.

I received an incorrect or damaged item with my order, What do I do?

If you received an order from Klean Kanteen UK and it contained a damaged or incorrect item please reach out to our Customer Service team as soon as possible via our Contact Us page.

How do I find out about Special Deals, Discounts And Promotions?

If you want to be the first to find out about our specials deals, discounts and promotions, join our e-newsletter, or follow us on social media on Facebook or Instagram @KleanKanteenuk.

How do I order customised products?

At Klean Kanteen UK, we’ve collaborated with a variety of brands and organisations over the years to produce custom artwork bottles. To see our co-brand capabilities, requirements and to start the co-brand process, please see our Co-Brand page. We look forward to partnering with you!

I have a product suggestion. How do i submit?

Klean Kanteen USA love hearing your suggestions. They focus on creating products that replace a single use alternative and take into account the full lifecycle to evaluate whether it fills a true consumer need and fulfills their mission to reduce waste. All outside product idea submissions must include the patent number and a brief description of the invention. Klean Kanteen USA do not consider submissions unless they have a patent. Please submit your ideas to

Account Questions

How do I change my password?

If you're signed into your account go to "My Account". Once on your profile page, you can select “reset password” to change your current password.

Forgotten Password?

Click “Forgot your password?” on the account sign in page and a password reset link will be sent to the email associated with your account. If this email does not arrive, we may have a different email on file or an account has not yet been set up. Please be sure to check your spam/junk folders as well.

I'm interested in becoming a Trade stockist for Klean Kanteen. How do I open an account?

Due to its popularity it's important to us that we are able to meet customer demands for Klean Kanteen products. We select partners carefully so that the Klean Kanteen brand is represented in the best possible way and our business grows in a sustainable way. 

In order for us to fully review your request to become a stockist, please complete the New Account Enquiry form here, providing as much information as possible about your business. Please note that, as the UK Importer and Distributer, we are only able to supply businesses located in the UK or Ireland. 

We'll aim to respond to your enquiry within 10 working days.

Product Questions

What is Klean Coat?

The new Klean Coat® finish is a clean powder coat that is 4X more durable than Klean Kanteen's previous paint finish. GreenScreen® is used to score ingredients by their level of safety and ingredients that did not meet the standards for contact with people and the environment were eliminated. To learn more about Klean Coat, please visit our Klean Coat page.

Does the paint on a Klean Kanteen contain lead?

No. All Klean Kanteen painted products are non-toxic, safe and durable. Paints are reviewed and tested annually and exclusively use an acrylic paint that contains no toxins or lead.

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, silicone, nickel, carbon, nitrogen and manganese. The properties of the final metal change depending on varying amounts of these elements. There are over 150 grades of stainless steel, of which 15 are most commonly used. Klean Kanteen products 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 food, beer and wine industries.

What is Nickel and 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 alloys such as stainless steel. Approximately 10-15% of the population are 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 the food, beer and wine industries.

Which is better - stainless or aluminium?

Aluminium bottles require an inner liner to protect the metal from leaching into the contents. If aluminium comes in direct contact with food or beverages, it would make the contents unsafe to consume. The most common materials used to line aluminium bottles include plastic resins or baked-on epoxy, both of which have been known to leach BPA and other harmful chemicals or can get scratched, exposing the aluminium underneath. Ceramic is another material used but it's more rigid and can crack. These liners can also retain flavours, which can impart funky tastes, residual and off-flavours. Stainless steel is the most healthy, safe and durable material for Klean Kanteen products and is versatile for a lifetime of adventures.

Do Klean Kanteens have BPA?

No way! Klean Kanteen was created in 2004 as a safe and healthy solution to plastic water bottles and all Klean products are BPA-free. Klean is rooted in health and wellness and has been from the beginning. Klean Kanteen chose 18/8 food-grade stainless steel instead of aluminium or plastic because stainless steel is inherently safe and toxin free. All caps are BPA-free polypropylene (pp#5) and they offer stainless steel cap options like the Stainless-Steel Loop Cap for those that prefer a plastic-free product.

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 including cancer. Polypropylene has no known leaching characteristics and is softer than other types of plastic. BPA exhibits hormone-like properties that raise concern about its suitability in some consumer products and food containers. Since 2008, several governments have investigated its safety, which prompted some retailers to withdraw polycarbonate products. The FDA has ended its authorisation of the use of BPA in baby bottles and infant formula packaging, based on market abandonment, not safety. The European Union and Canada have banned BPA use in baby bottles. (Source:

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

Access to safe, clean drinking water is one of the most important issues to Klean Kanteen. They believe that water should be free and accessible to all. Because of that, they are actively working with non-profit partners like the Environmental Working Group on education, awareness and advocacy around this important issue. Klean Kanteen products are made from 18/8 stainless steel and stainless steel does not contain hexavalent chromium. We recommend that you check with your local water provider and get a copy of their most recent water quality report.  

Do Klean Kanteens have an interior lining?

No. All Klean Kanteen products are made from high quality, 18/8, food-grade stainless steel. Stainless steel is naturally free of BPA and other harmful substances. Since stainless steel is inherently safe for food and beverage contact no plastic or epoxy linings are necessary. This is one of the main differences between a Stainless Steel Klean Kanteen and aluminium bottles. All aluminium bottles must have a liner to maintain the integrity of the contents inside the bottle; otherwise, the aluminium leaches into the contents, which is unsafe.

What does "Insulated" mean?

To make an insulated Klean Kanteen, an inner is first constructed and then an outer bottle, which are sealed together and welded shut to be completely air-tight. Then the bottle is connected to a high-power vacuum pump which removes all the air from the gap in between the inner and outer bottle. Since there's nothing to conduct heat across the gap, vacuum insulation is more effective than foam or other common insulating materials like Styrofoam, a derivative of plastic. Vacuum insulation works so well, it is the technology of choice for cryogenic storage tanks and other high-performance insulating vessels. Vacuum insulated bottles can keep your beverages hot or cold for hours and hours. For more information on vacuum insulated products, visit

Why do Klean Kanteen caps have plastic at all?

Klean Kanteen UK offer a range of premium, all stainless cap options for the Classic line including the Stainless Unibody Bamboo Cap and our Stainless Loop Cap. Klean Kanteen's goal is to make reusable products at prices that are solutions at an accessible price point, so caps are available that are made from safe, BPA-free polypropylene (pp#5) that are completely recyclable at end of life. These caps are lightweight and meet our high standards for quality, durability and design. The Wide Loop and Flip D-Ring caps are PP#5 on the outside, but an all-stainless interior, so drink contents never touch plastic.

Why do your Insulated Food Canisters have plastic in the lid?

Insulated Food Canister Caps have recently been updated to support better insulation and heat retention. In order to meet the rigorous performance product standards, the decision was made to move to a BPA-free Polypropylene #5 inner to the cap instead of an all stainless cap. To create sustainable insulation (rather than using Styrofoam), we chose a corrugated recycled cardboard in the lid, along with durable, double-wall construction in the canister wall. The Insulated Canisters keep contents hot or cold from 5 - 8 hours, depending on the size.

Klean Kanteen 8oz Insulated Canisters will keep food hot for up to 5 hours and cold, up to 10 hours. For maximum thermal efficiency, we recommend pre-heating or pre-chilling your canister prior to use. Fill with hot / cold water , attach the lid and let it stand for 5 - 10 minutes. Of course, foods like soup, that lack density are generally prone to losing heat faster than foods like Lasagne or Oatmeal that are viscous and retain heat. 

The 1st generation Insulated Food Canisters were designed to keep the contents hot for up to 3 hours and cold, for up to 5 hours. These came with a Stainless Steel Cap with a stainless interior but these have now been discontinued.

Are caps interchangeable?

The mission behind all of our accessories is simple: to help Klean products perform at their best and have long, versatile lives. Our interchangeable lids easily transition from morning coffee to afternoon smoothies, water or beer on draught. Look for our “Compatible Caps” section on each product page to see which caps are compatible with your Kanteen.

    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 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 that water can drain out.

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

    Classic Loop Caps and Wide Caps are dishwasher safe. The Café Cap 2.0 is also dishwasher safe and the group of rotating pieces can be popped out for a thorough clean.

    The Stainless Unibody Bamboo Cap is NOT dishwasher safe.

    Visit our Care & Use page for more information.

    Can I put my Klean Kanteen in the freezer?

    Unfortunately, not. 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 product will void the Strong as Steel™ guarantee against manufacturer defects.

    Can I put my Klean Kanteen on a stove?

    In a pinch, single-wall Classic and single-wall 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. Heating an Insulated Kanteen is not advised, it will damage the bottle and voids the warranty. To identify what kind of Kanteen you have, look at the bottom of the bottle. All Klean Insulated Kanteens have a separate, extra shiny "bottom cap" piece on the bottom and also have the word "insulated" below the logo.

    Are Klean Kanteen products dishwasher safe?

    Single-wall (non-insulated), brushed stainless Klean Kanteens and food canisters are dishwasher safe. We recommend handwashing of insulated and color coated products. All Klean Kanteen caps and lids, except for the bamboo cap, are also dishwasher safe. Visit our Care and Use page to see videos and more information on caring for your Klean Kanteen products.

    Are your products vegan?

    Klean Kanteen products do not contain animal products or bi-products. Klean Kanteen USA conduct a Chemical Hazard Analysis on the composition of all of our products’ components. This includes 18/8 stainless steel (#304), polypropylene, silicone, our Klean Coat and our bamboo. At no time during the production or processing of these materials are there animal products used.

    Can I use a Klean Kanteen for alcohol?

    Yes! In fact, the 27oz/800ml Classic is capable of holding an entire bottle of wine and the 64oz Wide as a Growler will transport a half gallon of beer. The 16oz Steel Pint Cup has been designed to displace single-use beer and wine cups and because Kanteens are constructed of 18/8 food grade stainless steel, there is no issue when drinking any alcoholic beverage from any Kanteen.

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

    Absolutely. Your Klean Kanteen is food-grade stainless steel, which is safe and will not retain or impart flavours. Klean also offer a stainless steel Baby bottle designed for relaxed feedings. You can visit the Kid Kanteen collection here.

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

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

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

    Yes. Insulated bottles are made using durable, double-wall construction and vacuum insulation, which is both long-lasting and sustainable. Because they're insulated, these bottles will NOT show condensation build-up on the exterior of the bottle, regardless of what's inside them or the temperature outside.

    Klean Classic and Wide lines are single (rather than double) wall. If the contents of the drink are colder than the temperature outside, condensation will build-up on the exterior of the bottle. The best solution to naturally occurring condensation on Classic and Wide bottles is to put your Klean Kanteen in an insulated sleeve.

    When does Klean Kanteen not recommend hot beverages in their Kanteens?

    • With the use of the Steel Loop Cap and Bamboo Cap. The steel cap can conduct the heat from the hot liquids and can be hot to touch.
    • With the use of the Sport Cap, Kid Sippy cap and Straw. These drink through accessories and may not be safe to use with hot liquids.
    • With the use of the Insulated Kid Kanteen. Kids may not be able to gauge the temperature of the liquid inside the bottle
    • With the use of any single-wall (non-insulated) products. These products may be hot to touch if used for hot liquids. This scenario is not recommended for kids or adults.

    Do you offer replacement parts?

    Klean Kanteen's Strong as Steel™ Guarantee covers gaskets, air valves and other serviceable parts on products for life. Missing an air valve for your sippy cap? Or not sure which gasket you need for your cap or lid? To see if we offer a replacement part for your specific need, reach out to our Customer Service team via our Contact Us page.

    How much does a Kanteen weigh?

    It depends on the product. Klean Kanteen have tested various wall thicknesses and struck a confident balance between durability and weight. The stainless steel walls in the bottles is significantly thicker than other bottles on the market. They don't dent or bend easily and Klean products are still lightweight and easy to carry.

    Do Klean Kanteens sweat?

    Insulated bottles are made using durable, double-wall construction and vacuum insulation, which is both long-lasting and sustainable. Because they're insulated, these bottles will NOT show condensation build-up on the exterior of the bottle, regardless of what's inside them or the temperature outside. Klean Classic and Wide lines are single (rather than double) wall. If the contents of the drink are colder than the temperature outside, condensation WILL build up on the exterior of the bottle. The best solution to naturally occurring condensation on Classic and Wide bottles is to put your Klean Kanteen in an insulated sleeve.

    Warranty Questions

    What is your Warranty?

    Klean Kanteen are proud of the materials and workmanship that goes into each Kanteen and back their products with a Strong-as-Steel™ Guarantee which covers manufacturer's defects. Klean Kanteen UK are happy to support this guarantee if you believe you have a product issue. See our warranty page for information on submitting a claim.

    What do you consider normal wear and tear for the paint on painted Klean Kanteen?

    With normal wear and tear and daily use, paint can chip as a result of abrasion, scratching and impact (i.e. bottles falling out of bags etc.). The paint Klean uses is an acrylic-based that is lead free, BPA-free and free from toxic chemicals. Klean Kanteen rely on an extensive restricted substances list (RSL) and 3rd party lab testing to evaluate whether to consider specific colours, and will not offer those colours if they involve a chemical of concern.

    If paint is flaking or peeling off, please submit a warranty claim and we'll issue a replacement. Check out our Returns and Exchange page for more information.

    To reduce wear and tear and prolong the life of your Klean Kanteen, we recommend hand washing painted bottles with mild, biodegradable detergent. The high water pressure and temperature in dishwashers can cause painted bottles to chip over time.

    I have a split weld in my Kanteen. What should i do?

    It sounds like your Kanteen had a weld that was not properly fused so we will certainly replace this for you. Check out our Returns and Exchange page and follow the instructions to submit your warranty claim.

    I have a pinhole leak in my Kanteen. What should i do?

    We take quality seriously and all of our products carry our Strong as Steel™ Guarantee. With that said, sometimes during the manufacturing process, small air bubbles can become trapped in the steel resulting in a pinhole leak. We'll be happy to replace this for you so check out our Returns and Exchange page and follow the instructions to submit your warranty claim.

    My Sports cap broke. Will you replace it?

    All of our products carry our Strong as Steel™ Guarantee.  We'll be happy to replace this for you so check out our Returns and Exchange page and follow the instructions to submit your warranty claim.

    How do I fix a leaky Sippy?

    The Silicone valves in Kid Kanteen Sippy caps can loosen with time, which allows liquid to escape. To fix this, pull the valve out, clean it with warm, soapy water, then pop it back into the mounting position. You might also need to replace the silicone ring on the outside of your cap. Check out the Classic Cap Maintenance Kit. but if you still have issues or questions, please feel free to send us an email.

    Why is my insulated bottle rattling?

    If you here a rattle in your kanteen, it can be one of two things; either the weld (or a piece of it) that retains the integrity of the vacuum space has become dislodged and is now rattling in the space between the double wall insulation, or a small piece of metal called the "getter" has broken free and is now moving about freely at the base of your Kanteen. You can continue to use your bottle normally as it is still completely safe. 

    Both of these components have their respective functions within the internal walls of the Kanteen. A loose "getter" will not affect the insulation properties of the bottle whereas a broken weld or piece of it can potentially render the insulation useless because the vacuum seal can be compromised. Please follow the instruction on our warranty page for a return or replacement. 

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

    Sports caps are typically designed and used with squeezable plastic drinking bottles. Because stainless steel isn't pliable or squeezable, the sports cap has been designed so that air can get back into the bottle as you drink. The small transparent dot on the top of the Sport Cap 2.0 is a leak-resistant silicone valve, which allows air back into the bottle so that water can flow out. The noise that you hear is air moving through the valve. 

    Older Sport Caps do make a noise whereas the Sport Cap 2.0 is significantly quieter but it will still  make a noise. If your cap is making a loud chirping or whistling noise, the silicone valve may be in the wrong position or may be dirty or clogged. As a first step, we recommend cleaning the inside of the cap with a bottle brush and warm, soapy water. Also, push the little silicone nub on the top of the cap to the side and clean around it. You can rotate the valve to make sure it's positioned correctly. To remove the valve for cleaning, see instructions for this on our Care & Use page.

    You could also loosen the cap just a tiny bit, making sure that it's still tight enough to keep the bottle from leaking. The silicone vent will work better if the cap is not over-tightened. Try to keep the air vent facing upwards towards your noise. This way, it keeps the vent facing upward so it is backed by air, not by the liquid which creates the gurgling/chirping noise when air bubbles enter it.

    If these methods don't work for you, and you'd like to receive a replacement Sport Cap, please contact our returns department by emailing .Please keep in mind that if you receive an alternative cap, it will also make some noise.

    Why do I have rust stains on my bottle?

    All Klean Kanteen products are made from 18/8 food-grade stainless steel which is safe, durable, BPA-free and highly resistant to rust. If your bottle appears to have rusted, it's probably just a mark left from the electropolishing process. Sometime electrolytes left on the surface turn a rust colour, but it's harmless. To remove residue, soak your Kanteen overnight in hot water and baking soda or white vinegar. Follow the soak with a good scrub using a bottle brush or scouring pad, combined with a wooden spoon or other kitchen utensil for leverage.

    My Kanteen has a metallic taste. Is this normal?

    Klean Kanteen products are made from durable 18/8 stainless steel. The stainless steel that is used for manufacture is the same grade that is used most commonly in the food, beer and wine industries because it is easy to clean, durable and does not impart flavours or leach chemicals into the beverage contents.

    If you have a metal allergy or sensitive palate, you may detect a metallic taste. Swapping out the cap to a Sport of Café Cap is a great solution as these caps are Polypropylene and create a barrier between your mouth and the Kanteen itself.

    We also recommend soaking your Kanteen overnight with hot water and baking soda. Follow the soak with a good scrub using a bottle brush or the abrasive side of a scouring pad aided with a wooden spoon or other kitchen utensil for leverage.

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

    Klean Kanteen products are made of durable 18/8 stainless steel. Unfortunately they can dent when dropped. Our Strong as Steel™ guarantee 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 to use. With no plastic liner on the inside, a dent, no matter how large, will not change the composition of the metal nor make it unsafe.

    My Café Cap leaks. Will you replace it?

    The new Klean Café Cap 2.0 is guaranteed to be leakproof. Our previous version 1.0 is not.

    Over time, the silicone gaskets and o-rings on our caps may fail or become loose, causing the seal around your cap to fail or leak. Our Maintenance Kits include o-rings, gaskets and gasket tools - a no fuss fix that extends the life of your bottle. See Maintenance Kits here.

    Other Klean leakproof cap options are the Loop Cap and Wide Loop Cap. 

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

    Stainless steel is easy to clean. Start by making 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 to 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.

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

    If you've already given it a good scrub with a bottle brush and warm soapy water, try mixing a quarter cup of vinegar and 3 - 4 tablespoons of baking powder in warm water and let it soak in your Kanteen overnight.

    Sometimes the gasket needs cleaning. The gasket is located inside the cap. If it's a Café Cap 2.0, follow the easy instructions here to clean 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. Follow our easy instructions on how to clean Klean Kanteen here.

    My Kanteen froze and now the bottom is bulging out. Is there any way to fix it?

    Freezing your Klean Kanteen voids Klean's Strong as Steel™ guarantee 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. Either way, 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. The safest way to go about repairing a bulge in the Kanteen is to place the bottle on a firm, flat surface, bottom side down. If you try pounding the bottom back into place from the other direction you may risk adding new dents.

    • First place something over the rim of the Kanteen (i.e. a small piece of finished wood). This will protect the integrity of the mouthpiece and rim while you are tapping with the mallet by dispersing the pressure more evenly.
    • Get an extra pair of hands for help. You'll need one person to hold the bottle steady and one person to hold the wood and swing on the mallet. Remember to take it easy when swinging the mallet - swing softly!
    • It doesn't take much force to pop the bulge out - the key is applying the pressure in the right place evenly.