A Copper Bottle for the Overnight Water Tradition
Written and reviewed by The Kriya Yogi · Updated 4 October 2026
The short answer
The practice of filling a copper vessel with water in the evening and drinking it the next morning is a traditional one, and we report it without making a medical claim about its effects. Our bottle is seamless, hand-finished pure copper with a leak-resistant cap, and it is meant for water only, never acidic or hot drinks.
What matters for this
- Material
- Pure copper (99%+)
- Capacity
- Approx. 600 ml
- Construction
- Seamless body, leak-resistant screw cap
- Finish
- Hand-polished; patinas with use
- Contents
- Water only — not for hot drinks, juice, milk or acidic liquids
- Price
- $69.95
What the overnight tradition actually involves
The practice is simple: fill the bottle with water in the evening, leave it to stand overnight, and drink it the next morning. We describe the custom as it is traditionally followed; we make no claim about any benefit beyond reporting the practice itself.
Why seamless construction matters for standing water
A seam or join is the most likely place for a vessel to develop a slow leak or trap residue over repeated overnight use. The seamless body means water sits in contact with a single continuous copper surface overnight, with nothing for it to seep around.
Keeping it to water only
This bottle is intended for water alone — not tea, juice, milk or anything acidic, which can react with copper differently than plain water does over an extended standing period. Sticking to water is both the traditional use and the simplest way to keep the bottle performing as intended night after night.
Living with the patina
Copper left standing with water overnight will darken with use faster than one used only briefly. That darkening is a normal patina rather than damage, and a clean with lemon and salt or tamarind restores the shine whenever you want it back.
Choose something else if…
- Anyone wanting to carry anything other than plain water in it.
- Those who would rather avoid hand-washing and occasional polishing upkeep.