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Which Stainless Steel Water Bottle Should I Choose?

Stainless steel water bottle with a bamboo cap, held by its loop at the beach

Which Stainless Steel Water Bottle You Should Choose

Which Stainless Steel Water Bottle Suits Me Best?

You have decided to drop plastic. Good. Now comes the harder question: which steel bottle?

Three things decide it. What is inside the steel, what size fits your bag, and what happens when a part wears out.

Harmful substances such as BPA and microplastics in stainless steel water bottles

BPA is the one everyone knows. It is not the only one worth asking about.

Some makers still use a cheaper alloy that contains lead. Before you buy, find out which alloy is in the bottle. 18/8 stainless steel is the one you want.

Ours are independently tested for lead under the US CPSIA, and we retest every year. The reports are free to download on our certificates page. No form, no account.

Why steel beats plastic for the body in the first place: why stainless steel is the material of choice.

Which water bottle size is right for me?

Pick by the bag you carry, not by the number on the label.

  • 34 oz if you have a backpack or a tote, and you want to fill up once.
  • 25 oz for a normal work bag, or a school bag you do not want to overload.
  • 17 oz for a handbag, or whenever weight matters more than volume.
  • 12 oz for the smallest carry. That size exists only in the double vacuum bottle.

One trade-off, and it is obvious once you say it. The smaller the bottle, the more often you refill.

If you think in gallons, how many ounces in a gallon does the arithmetic.

For a child's bag, sizes and lids are a question of their own: What's the best water bottle for kids?

Blockhuette double vacuum insulated stainless steel water bottle in front of a bike

Rather hot or cold? Our insulated water bottles

They hold cold drinks cold and hot drinks hot. And they do it without any coating inside.

That is worth saying plainly, because it is often described wrongly. The insulation is a vacuum between two steel walls. The wall your drink touches is uncoated 18/8 steel, and nothing else.

25 hours cold, 13 hours hot, with no preheating. That holds for the vacuum insulated bottle, the silicone-sleeved one and the double vacuum bottle alike.

The numbers are the same. What differs is the shape and the lid.

The double vacuum bottle has the narrower neck, comes in 12 oz as well, and fits a cup holder. One honest note on it: its click lid is made of plastic. The body is steel, the lid is not.

Blockhuette stainless steel water bottle on the beach
a guy drinking from the Blockhuette stainless steel water bottle, sitting on the beach outside of his van

Which accessories are practical for getting through the day with my water bottle?

Ask what comes in the box, and ask what you can buy on its own later. The second question is the one people forget.

A carabiner sits on the carrying handle, so the larger sizes clip onto a small bag. The seal holds carbonated drinks, and the bottle stays 100% leak-proof with them.

Every bottle ships with a bag of 100% organic cotton, a spare seal and a brush with natural bristles.

And every wearing part is sold separately. When a seal stops sealing, you buy a seal. Not a new bottle.

How to keep any of them in shape: how to care for a stainless steel water bottle.

If you want something more colorful, look at the bottle with the silicone sleeve. There is a color for everyone.

What the sleeve is made of, and whether it counts as plastic: Is silicone plastic?

Vacuum Insulated Stainless Steel Water Bottle
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Conclusion

Always on the go, cold drinks, maybe carbonated? Or a leisurely tea drinker?

For everyday carry, take the vacuum insulated bottle in the size that fits your bag.

For sport, a cup holder and a narrower neck, take the double vacuum insulated one.

Either way the numbers are the same. 25 hours cold, 13 hours hot, no preheating.

Questions people ask

Which stainless steel water bottle suits me best?

Three things decide it. What is inside the steel, what size fits your bag, and what happens when a part wears out. For everyday carry, take the vacuum insulated bottle in the size that fits your bag. For sport, a cup holder and a narrower neck, take the double vacuum bottle.

Which water bottle size is right for me?

Pick by the bag you carry, not by the number on the label. 34 oz for a backpack or a tote, if you want to fill up once. 25 oz for a normal work bag. 17 oz for a handbag, or whenever weight matters more than volume. 12 oz exists only in the double vacuum bottle.

Do the insulated bottles keep drinks hot as well as cold?

Yes. 25 hours cold and 13 hours hot, with no preheating. That holds for the vacuum insulated bottle, the silicone-sleeved one and the double vacuum bottle alike. The wall your drink touches is uncoated 18/8 steel, with no coating inside.

What comes in the box, and what can I buy later?

Every bottle ships with a cotton carry pouch, a spare seal and a natural bristle brush. Every wearing part is sold separately. When a seal stops sealing, you buy a seal, not a new bottle.

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