Copper Bottles

Copper bottles and cups from our own collection, in two capacities and two finishes. Every bottle and cup carries the Rings of Lakhovsky: a pattern of open circles inspired by the work of Georges Lakhovsky, which you will not find on any other copper bottle.

A 500 ml bottle weighs 227 grams, so it carries as easily as any lightweight water bottle. And because you use it for years instead of buying a new plastic bottle each time, it saves waste.

Frequently asked questions

What are the bottles made of?

Copper with a purity of approximately 99.1%; the remainder is mainly zinc. The inside is bare copper, so your drink is in direct contact with it. Only the outside is coated. Bottles and cups have been independently tested to the European requirements for materials that come into contact with food (EU Regulation 1935/2004).

Why 99.1% and not 99.99%?

Because that is better for a drinking bottle. Purer copper is softer: it dents more easily, deforms faster and can crack where the wall is thin. The roughly 0.9% zinc makes the material harder and stronger, so the bottle stands up to daily use.

Copper of 99.99% and higher certainly exists, but it is used where conductivity matters: power cables and electronics. For a drinking bottle, conductivity plays no part at all.

Is a copper bottle magnetic?

No. Copper isn't magnetic, so a magnet won't stick to our bottles and cups. It's easy to try at home. How copper purity is measured is explained in our blog Real copper water bottle or cup: how pure is pure copper?

Why is the outside coated?

The coating keeps the outside looking good. Untreated copper reacts with air and hands and turns dark and patchy. Thanks to the coating, the outside stays as it was when you bought it. The inside is deliberately left uncoated.

What sizes are available?

Bottles of 500 ml and 950 ml, and cups of 300 ml. The 500 ml bottle weighs 227 grams. Bottles and cups are made of the same material.

What is the difference between shiny and matte?

Only the finish of the outside. Shiny is polished and reflective; matte has an even, dull finish on which fingerprints are less visible. Material, capacity and coating are identical.

What are the rings on the bottle?

These are the Rings of Lakhovsky: concentric circles that are not closed. The pattern derives from the work of Georges Lakhovsky, the French-Russian engineer who designed the Multiwave Oscillator in the 1920s. It is a design feature of our collection.

Do hot drinks stay warm?

No. Copper conducts heat very well, so warm water cools as quickly as in any single-walled bottle, and the outside gets hot. The bottle is meant for water at room temperature or lukewarm.

Does the bottle discolour over time?

The outside does not: it is coated and stays as you bought it. Inside, the bare copper may darken over time. That is a natural property of copper and not a defect.

How do I clean the bottle?

By hand, with lukewarm water and a soft cloth. Not in the dishwasher, and no copper polish on the outside: both attack the coating. The inside is bare copper: clean it 2–3 times a week with lemon and salt, or vinegar and salt, to remove the patina, then rinse well.