The Science
The proven research and ancient wisdom behind drinking from pure copper.
The biggest proven benefit comes from drinking more water, consistently. A premium copper bottle simply makes you want to.
Copper is one of the few metals with naturally antimicrobial properties. Research shows copper surfaces can reduce bacteria, viruses and microbes on contact — the reason copper vessels have stored water for thousands of years.
In Ayurveda, water stored overnight in copper is believed to stimulate digestive function and support gut balance. Many users report feeling less bloated first thing in the morning.
Copper plays a role in collagen production and connective tissue. It is often associated with healthier-looking skin and a natural glow — though copper water is not a skincare treatment.
Copper is an essential trace mineral. Small amounts naturally leach into water stored in a copper vessel, supporting processes the body relies on daily.
Copper helps activate antioxidant enzymes that combat oxidative stress, protect cells from damage, and support healthy ageing.
Copper contributes to connective tissue maintenance, bone development and cartilage health — one reason it is considered an important nutrient for long-term wellbeing.
Copper is a cofactor for enzymes involved in neurotransmitter synthesis and the myelin sheath that insulates nerve cells. Adequate copper status is linked to clearer thinking, steadier mood and a sharper nervous system.
Water stored in copper for 6–8 hours gently shifts towards a more alkaline pH. For people whose diets are heavy in acidic foods, drinks and stress, that small daily reset adds up.
A single copper bottle replaces thousands of single-use plastic bottles over its lifetime. Pure copper is endlessly recyclable and only gets more characterful with age — the opposite of plastic.
The Other Side
Before we talk about why copper is so good — it helps to understand what most people are drinking out of every day.
A 2024 study in PNAS found that the average 1-litre bottled water contains roughly 240,000 plastic fragments — most of them nanoplastics small enough to cross into the bloodstream, organs and even the placenta. Heat, sunlight and time accelerate the shedding.
Aluminium reacts with water — so manufacturers coat the inside with an epoxy resin liner (often BPA-based or BPA-substitute). You're not drinking from metal; you're drinking from a thin layer of plastic painted onto reactive metal. Once the liner scratches, aluminium ions start leaching directly into your water.
Better than plastic, yes. But stainless steel is inert — it does nothing to your water beyond holding it. Cheaper grades can leach nickel and chromium, especially with acidic liquids, and the inner walls quickly become a hidden home for biofilm.
Glass is genuinely clean and non-reactive. It's the second-best option after copper. But like steel, it does nothing to improve the water — and one drop on a hard floor and your "lifetime bottle" is in a dustpan.
And This Is Why Copper Wins
Plastic shedding nanoplastics into your bloodstream. Aluminium hidden behind an epoxy liner. Stainless steel doing absolutely nothing to the water it holds. Glass that breaks the moment you trust it. Every modern bottle is a compromise — a container that stores water and, at best, doesn't poison it.
Pure copper is the only material on this list that actively improves the water it holds. It naturally destroys harmful bacteria through the oligodynamic effect. It gently alkalises your water overnight. It infuses trace copper — an essential mineral your body needs — into every sip. It's been doing this for over 3,000 years, long before anyone needed a label to explain it.
But — only if it's done right. Pure, unlined, food-grade copper. Hand-hammered for surface area. No coatings hiding the metal. Cared for properly, refreshed every 6–8 hours, and given the chance to do what it has always done.
That's exactly what every Puura bottle is built to be. The vessel matters as much as what's inside it — and now you know why.
Traditional benefits are commonly associated with copper vessels in Ayurveda and holistic wellness. Scientific evidence varies. Puura products are not a substitute for medical advice.