Neatly finished, seals well and is practically designed with a handle and a soft base. It also comes with a lovely, sturdy cover. I couldn't find another copper bottle online that has all of this.
Niko
Verified purchase
What makes this special
900 ml of solid copper
No coating and no plastic inner wall. Completely pure copper hardly exists in practice; the small amount of zinc is part of the production process, is not a cost-cutting measure and makes the copper a fraction sturdier without affecting how it works or looks.
Screw cap with carry handle
The rubber ring in the lid seals the bottle watertight. Hand-tight is enough; the handle lies flat against the lid when you're not using it.
Independently tested for food safety
URS Products and Testing tested the bottle to European food safety standards: both the migration and odour/taste tests passed, none of the 19 heavy metals tested for were found. Read the full study under What does research say about copper?
Smooth or hammered
Only the surface differs. Smooth gives a calm, mirror-like surface; hammered is hand-worked into a lively pattern of small facets.
A colour change that comes with pure copper
Solid copper changes colour a little on its own as you use the bottle. That's completely normal, and even a sign of pure, uncoated copper. If you prefer the shine, simply polish the bottle with lemon and salt (not too hard: salt is mildly abrasive and dissolves well in the lemon juice). Exactly how is in the care guide.
Composition
99.21%
copper
99.21% copper, measured independently
The material is analysed by RTC Laboratory in Moradabad, a NABL-accredited lab, tested to ASTM-1621 and IS-228. In the sample that was analysed the measurement came out at 99.21% copper and 0.75% zinc; the remaining 0.04% falls within the measuring range of the analysis. Food safety is covered by a second report, from URS Products and Testing: tested against EC 1935/2004 and REACH, using the heavy metal limits from EU 10/2011 as the benchmark.
- 99,21% copper
- 0,75% zinc
- 0,04% remainder
- RTC Laboratory Moradabad
- composition, NABL-accredited
- URS Products and Testing
- food safety, EU regulation
- 19 heavy metals
- every one measured as "Not Detected"
What you actually get
In the box
- Copper water bottle, 900 ml, with felt base
- Luxury velvet carry pouch
- Luxury black branded box
- Card with a QR code to the digital guide
This bottle is made for one habit: fill it with still water in the evening, let it stand overnight, and drink it first thing the next morning. In Ayurveda that is called tamra jal, copper water, and there it is not an afterthought but the fixed opening of the day. Where the tradition comes from, and what can reasonably be said about it, is set out in the article on tamra jal.
Nine hundred millilitres is a deliberate size: enough for a full morning portion with a second glass after it, and still a bottle that fits in a bag. It stands upright on a desk, fits beside a bed, and opens with one hand.
You choose between smooth and hammered. Smooth gives an even surface that reflects the light in a single plane. Hammered is worked by hand, so every piece has its own pattern of dents that breaks the light. The copper underneath is the same either way. Both are formed from a single piece of copper, with no seam and no solder, so your water touches nothing but copper.
How to get the most out of your copper
Still water goes in, and nothing else. Carbonated water, lemon juice, sports drinks and vinegar are acidic enough to dissolve copper faster; pour those into a glass. How much you can sensibly drink from it per day, and why there is an upper limit, is covered in how often per day you should drink from a copper bottle.
The bottle is not dishwasher safe. Rinsing with warm water is usually enough, and a slice of lemon with salt (not too hard: salt is mildly abrasive and dissolves well in the lemon juice) brings the shine back now and then. The full routine is in the care article.
And it will darken. Uncoated copper reacts to air and moisture and grows darker over the weeks, sometimes with green or black patches. That is normal, it is reversible, and it is also the clearest proof that there is no lacquer over it. When discolouration does mean something, read why is my copper turning green or black.
Still weighing up copper, stainless steel and plastic? The material comparison puts the three side by side. Copper is the only one of the three that is naturally antibacterial, and the only one you polish back instead of replacing.
Settled in, in six steps
From the first clean to your steady water ritual. Rinse, fill, leave it overnight: there is not much more to it.
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Clean the bottle first
Shake the juice of half a lemon with a tablespoon of salt in the closed bottle. Rub the outside with lemon and salt (not too hard: salt is mildly abrasive and dissolves well in the lemon juice). Rinse and leave the bottle open to dry.
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Fill it with still drinking water
Just water. No juice, tea, coffee, fizzy drinks or alcohol, and no acidic drinks.
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Screw the cap on loosely
Hand-tight is enough. The rubber ring makes the bottle watertight; over-tightening damages it.
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Let the water rest
Fill the bottle in the evening and drink the water the next morning. It is ready after four to eight hours; drink it within 24 hours.
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Rinse it out after every use
Warm water is enough. Leave the bottle open so the inside can dry.
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Polish it when the shine fades
Every one to two weeks: the outside with lemon and salt (not too hard: salt is mildly abrasive and dissolves well in the lemon juice), the inside with lemon juice and salt shaken in the closed bottle. Rinse well and dry right away.
Read the full guide
The packaging also carries a QR code that takes you straight to this guide.
The water bottle, from cap to pouch
A generous copper bottle for your daily water ritual, rounded off with thoughtful details for home and on the go.
The bottle holds 900 ml: enough to take your copper water ritual with you when you're out. RTC Laboratory also measured 99.21% copper and 0.75% zinc; this zinc comes from the production process and isn't an added extra.
The metal lever rotates with your movement and lies flat against the cap when you don't need it.
The included felt base protects the bottom of the bottle and the surface underneath.
The soft pouch keeps the bottle safe while you carry it with you.
URS Products and Testing tested the bottle to European food safety standards; both the migration and odour/taste tests passed, none of the 19 heavy metals tested for were detected.
You unpack a luxury black branded box. So you can give it away straight from the box, without wrapping anything around it.
A Kopero card is inside the box. The QR code on it takes you to the digital manual.
Why this bottle
900 ml
A morning serving and a glass after
Screw cap
Leakproof thanks to a rubber ring
99.21%
Copper, no coating, independently measured
Tested
Food safe to EU standards, none of 19 heavy metals detected
Felt
A piece of felt under the base
Pouch
Velvet pouch for storing and carrying
>99.9%
Bacteria killed in lab tests, within two hours
For life
Polish it back, and melting copper down costs it nothing
The bail on the cap
You lift the bottle by the bail and turn the cap open and shut with the same hand. Handy when you pull it out of a bag or a bottle pocket, and on the smooth finish the reflection carries right up into the cap.
Felt under the base
There is a layer of felt on the bottom. You set the bottle down without a clunk and without scratching wood or stone, and it does not slide on a smooth table.
Manufacturer and product information
- Manufacturer
- Kopero is a brand of JL Enterprises, Torenlaan 5, 1402 AT Bussum, the Netherlands.
info@kopero.nl - Product
- Kopero Copper Water Bottle · Smooth
EAN 8720726791397 - Safe use
- Fill the product with still drinking water only. Acidic drinks such as fruit juice, soft drinks and lemon water dissolve copper faster and belong in glass. Do not leave water standing in it for more than a day. Wash by hand, not in the dishwasher. If you have Wilson’s disease or another condition in which copper accumulates, talk to your doctor first.
Thirty days to decide
Unpack it at your own pace, feel the weight and see whether the size suits you. If it is not for you, send it back within thirty days and get your money back. If you use it for longer than you need to judge it, we may deduct for loss of value. You arrange the return yourself with whichever carrier suits you best, or you ask us for a return label. The cost of sending it back is yours.
Read the return policyReviews of this product
4.9 (42 reviews)
Translated from Dutch
Very happy with the copper bottle. The water tastes softer and pleasantly fresh. The bottle also has a lovely design.
Hans
Verified purchase
Fast delivery and a beautiful copper bottle. It looks lovely and comes with a handy velvet pouch that keeps the bottle well protected. The little handle on the cap is also very practical for carrying it. The water tastes noticeably softer and fresher; I really taste a difference. I'm so happy with it that I'll soon order another one as a gift. Definitely recommended!
Shakti
Verified purchase
Fantastic copper bottle with a smooth finish. A friendly card included with it takes you to clear instructions on how to care for the bottle. I went straight to AH to buy lemons, white vinegar and salt. I rescued my old bottle, which I thought was beyond saving, from the bin and restored it using the care instructions. Thanks to the excellent explanation, I now also understand how tarnish develops and how to deal with it. Fantastic purchase.
Paul
Verified purchase
Good-quality copper bottle. It seals well, feels comfortable in the hand and is easy to carry thanks to the handle. The felt base prevents damage and the included bag is practical. It looks great too! Happy with it.
Bloem
Verified purchase
It's really pleasant to drink from this bottle. Good quality and very beautiful.
Ina
Verified purchase
Lovely bottle with a carrying bag. The water tastes softer. Very happy with it.
Amzi
Verified purchase
Fast delivery and the water tastes wonderfully soft. Lovely bottle.
Mart
Verified purchase
Great product, very neatly finished.
Red
Verified purchase
I think the quality is good and I use it every morning.
Yous
Verified purchase
Write a review
Frequently asked questions about this product
Can I keep tea, coffee or juice in the bottle too?
Still drinking water is what the bottle is made for, and what the tradition has used it for over three thousand years. Acidic drinks like fruit juice, kombucha or lemon water attack the copper faster than water does, and the same goes for fizzy drinks, alcohol and hot drinks. Brief contact is fine, like when polishing with lemon; storing one for hours is not.
How long can the water sit in the bottle?
For the traditional Tamra Jal ritual, count on four to eight hours: fill the bottle in the evening and drink the water the next morning. We wouldn't recommend leaving it longer than 24 hours. If the water smells or tastes different than usual, pour it out and clean the bottle again with lemon and salt before refilling it.
What's the difference between the smooth and the hammered finish?
Just the finish: copper, a 900 ml capacity and quality are identical for both. Both are formed from a single piece of copper, with no seam and no solder. Smooth gives a calm, mirror-like surface; hammered is hand-worked into a pattern of small facets, which catches the light differently and gives the bottle a more handcrafted look.
Can the bottle go in the dishwasher?
Rinse the bottle by hand with warm water, dry it right away, and leave it open to air dry so the inside doesn't stay damp. That takes half a minute and keeps the surface even; the heat and detergent of a dishwasher leave dull patches on it. Which habits keep the bottle looking good is in 8 mistakes with a copper bottle, and what to do instead.
What if the bottle changes colour?
That is completely normal and a sign of pure, uncoated copper: the material lives along with use. The inside darkens too, often patchy at first in a new bottle, and you can keep drinking from it. At the bottom you will see a few rings, which come from forming the bottle in one piece. That is often where the copper colours first, sometimes with a purplish sheen, and that is ordinary copper oxide too. If you prefer the shine, polish the outside with lemon and salt (not too hard: salt is mildly abrasive and dissolves well in the lemon juice), and for the inside shake lemon juice with salt in the closed bottle. Step by step it is in the guide.
Does the bottle work if my tap water is soft, or rather hard?
Yes, with both. Drinking water in Europe may not be aggressive or corrosive, not even after softening, so your tap water and copper go well together. With soft water the bottle stays practically free of limescale; with hard water a light white film can remain after draining, and lemon and salt take it off.
Together for your morning ritual
Clean your tongue, then have your morning water. Two products for one everyday routine.
30-day right of return
- Order before 11:30 pm, usually delivered in 4-5 days Temporarily out of stockA new delivery date has not yet been confirmed.
- Ships from Tilburg, the Netherlands
Kopero Copper Water Bottle
Order before 11:30 pm, usually delivered in 4-5 days
Temporarily out of stockA new delivery date has not yet been confirmed.
€49,95