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Stainless Steel Water Bottles: Is Yours Safe?

Are your stainless steel water bottles safe? Learn what to look for and what to avoid.

When it comes to reducing waste, saving money and being healthy, stainless steel water bottles are most definitely one of the first and most important steps you should take.


If tap water cost the same as bottled water, your average monthly bill would be about $9,000!

If you traditionally purchase bottled water, switching to a reusable water bottle and simply using water filters will save you tons of cash, up to $200 a month depending on your current buying habits.

It also means safer water, since bottled water is not required to meet the same standards as municipal water, meaning you don't know what you're getting.

And of course, it means far less waste: 30 billion plastic water bottles are thrown away each year, it takes 1.5 million barrels of oil to produce all that plastic and it takes about 1,000 years for the bottles to decompose.

But decomposing plastic has its own risks. Plastics contain harmful chemicals, such as BPA (bisphenol A - an endocrine disruptor linked to cancer, neurological issues, diabetes, reproductive issues and more). Consuming these is bad enough; distributing them to the Earth in the form of 30 billion plastic water bottles a year is pretty scary.

You can read more about the impact of bottled water just about anywhere. So, let's move onto the solution.

Choosing the Best Stainless Steel Water Bottles

For starters, understand that you're going to want more than one. You'll need one for every member of the household, then maybe 1-2 more for hiking trips, guests, replacements for a lost or dirty bottle or just to have on hand.

Thee reusable water bottles will cost a little bit more, in terms of initial investment, but they pay for themselves very, very quickly. However, you might be looking at the price of a stainless steel bottle compared to a commonly found reusable plastic water bottle and be tempted to pick up the cheap plastic version at the store. Let's look at why that's not a good idea:

  • Stainless steel lasts longer: Reusable plastic wears out too fast. It gets dropped and cracked easily, is prone to damage by heat, or sun and can be scratched easily. As soon as plastic shows any signs of wear it's no longer safe to use. But steel is durable, and doesn't wear out over time.
  • Stainless steel is healthier: Plastic contains chemicals, such as BPA mentioned above, which is known to cause severe health risks even in very small 'doses'. These chemicals are leached all the time (by off-gasing) but most especially anytime they are in the heat, like being left in the car. Stainless steel? Totally safe, no risk of leaching or off-gasing.

Be aware, however, that just because the bottle is metal, does not make it stainless steel.

Many metal water bottles, even popular companies such as SIGG, are actually aluminum, which has been linked to diseases such as Alzheimer's. Because you are not suppose to use aluminum in food grade products, it must come with a plastic liner, which can contain BPA and/or other harmful chemicals.

Unlike aluminum, stainless steel will need no liner to keep you safe and healthy, so look for smooth metal inside your bottle. You can still find an insulated stainless steel water bottle; just make sure the inner liner is also stainless steel.

Quality stainless steel water bottles will also list the material used on the bottle. Look for #304 or 18/8 food grade stainless steel. Skip anything else.

Caring for and Cleaning Stainless Steel

Keep your bottle out of the heat (such as a hot vehicle) since it may cause the shape of the bottle to distort. Also never use hot liquids in your steel bottle unless you have an insulted one, otherwise the metal will get too hot to handle.

The best way to clean your water bottle is with warm, soapy water and a soft bottle brush as often as needed.

You can use the dishwasher, but it's generally not recommended, especially if your bottle has any sort of label or design.

Our Favorite Water Bottles

AffirmWater bottles included positive affirmations!

For a long time, our favorite company has been AffirmWater, a small business run by two female entrepreneurs who I personally know to be wonderful. AffirmWater included positive words on their bottles, such as Love, Inspired, or Energized, to align with the theory of Dr. Emoto's that water takes on positive changes when combined with positive thought or word. (I've had the "Inspired" bottle for years, and my husband has had the "Energized" bottle, and I swear it works!)

However, after AffirmWater went out of business, their bottles have been difficult to find. Our next favorite choice is Kleen Kanteen. They are durable, offer wide mouths and non-plastic tops, and they have a long history of making good quality stainless steel water bottles.

Click here to find options on Amazon.

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