Knowledge Base
What copper does for you, where it comes from and how to enjoy it every day.
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How do I use it?
How do I care for it?
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What copper is, what has been measured on it and how to recognise the real thing.
- What does research say about copper? The studies per product
- What our copper products are made of
- How to recognise real copper: the complete buying guide
- Copper bottle: the benefits and the drawbacks, honestly side by side
- Why are more and more people worldwide choosing copper again?
Copper water and Ayurveda
The tamra jal ritual: fill at night, drink in the morning, and everything that goes with it.
- Tamra Jal: the Ayurvedic tradition of drinking water from copper
- Tamra jal in practice: how much, how long and in which vessel
- How many times a day should you drink from a copper bottle?
- Is copper water healthy? What copper does in your body
- Soft or hard water in a copper bottle: what water hardness changes
- Coffee and tea from a copper mug: what to watch out for
- The Ayurvedic tongue scraper: a centuries-old morning ritual
- Copper or stainless steel tongue scraper: what is the difference?
Body and material knowledge
What copper does in your body, what has been measured about bacteria and why the metal conducts so well.
- Copper and your body: what can you actually say? The 8 official EU claims
- Can copper really kill bacteria? The evidence, from the EPA to Southampton
- Why mitochondria need copper: energy at the cellular level
- Iron, copper and fatigue: the connection nobody tells you about
- Copper deficiency: how common is it really (and when should you pay attention)
- Copper on your skin: what has actually been measured
- Why copper conducts: from crystal lattice to 100% IACS
- 3500 years of copper as medicine: from the Edwin Smith Papyrus to now
- The French doctor who accidentally discovered that copper kept cholera away
Energy, shape and tradition
Pyramids, tensor rings, cubits and the traditions that give copper a place in the house.
- Shape Power: how form focuses energy, according to this tradition
- Pyramid energy: from a French trader to Russian fibre-optic giants
- How do you use a copper pyramid? Placement, alignment and ritual
- Tensor rings: who was Slim Spurling and what did he claim?
- Sacred Cubit, Lost Cubit and New Cubit: the measurements behind the tensor ring
- Using a tensor ring: where do you hang it?
- Torsion fields and 'The Source Field': the story behind Kozyrev and Wilcock
- Copper in Vastu Shastra and Feng Shui: where tradition places it
- Copper as the metal of Venus: love, harmony and attraction
- The copper bracelet: a centuries-old tradition
- Copper bracelet with or without magnets: which do you choose?
- Copper as a shield: from the MRI room to the lightning rod
Choosing and caring
Which size, smooth or hammered, what a price difference means and how to polish copper back.
- Buying a copper bottle: what to look for
- What size copper bottle do you need? From 300 ml to 1.4 litres
- Smooth or hammered copper: what is the difference?
- Maintaining a copper bottle: cleaning, polishing and storage
- Cleaning copper: baking soda, vinegar, lemon or citric acid?
- How do you keep copper shiny?
- The velvet pouch: what it is for and how to keep it clean
- 8 mistakes with a copper bottle
- Why is my copper turning green or black? (and is that a problem?)
- Dark spots inside your copper bottle: normal and safe?
- Why one copper bottle costs 30 euros and another 60
- Why copper got more expensive, and what that does to your bottle
- Copper vs. plastic vs. stainless steel: a fair material comparison
- Microplastics and your water bottle: what the material choice changes
- Four copper objects that outlived the centuries
- Why were people complaining about bad copper 4000 years ago?
Garden and electroculture
Copper antennas in the soil: where it comes from, what has been measured and how to place them.
- Electroculture: a centuries-old gardening tradition rediscovered
- Placing electroculture antennas: where, how deep and how many
- Electroculture in the Netherlands: from Andijk 1909 to your own vegetable garden
- Can insects sense electricity? What bees, caterpillars, and ticks reveal
- From two hundred hectares to a Soviet space station: electroculture without borders
All articles
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Four copper objects that outlived the centuries
From the oldest plumbing in the world to Ötzi's axe: four copper objects that are still here, and what that says about the copp...
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Copper as a shield: from the MRI room to the lightning rod
Why an MRI room is lined with copper, why the lightning standard specifies copper, and where the engineering turns into tradition.
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Copper on your skin: what has actually been measured
A bracelet is the only copper that sits against your skin all day. What happens there that can be measured, what copper does in...
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Why copper conducts: from crystal lattice to 100% IACS
Copper is the yardstick the world measures conductivity against, literally. What happens inside the lattice, why a coppersmith ...
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Buying a copper bottle: what to look for
Most copper bottles look identical in a photo. The difference sits in the inside, the seam, the closure and the wall thickness.
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Tamra jal in practice: how much, how long and in which vessel
The ritual translated into an ordinary week: how long the water sits, which vessel suits what, and what you do when you are awa...
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Cleaning copper: baking soda, vinegar, lemon or citric acid?
Four household remedies and one metal. What works, what damages your copper, and what to do about green deposits on the inside.
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Coffee and tea from a copper mug: what to watch out for
Why a copper mug warms up within seconds, which coffee and tea belong in it, and what the handle is there for.
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Microplastics and your water bottle: what the material choice changes
Why microplastics in drinking water keep making the news, where they come from, and what that means for the bottle you drink from.
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Smooth or hammered copper: what is the difference?
On almost every Kopero product you choose between smooth and hand-hammered. What changes, what does not, and where is the diffe...
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Using a tensor ring: where do you hang it?
Around the tap, beside a jug or loose in your hand: the practical ways the tensor ring is used in this tradition, and what it i...
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Placing electroculture antennas: where, how deep and how many
Which plants do you put a copper antenna beside, how deep does it go into the soil, and how many do you need? The practical sid...
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