{"title":"Onafhankelijk getest koper","description":"\u003cp\u003eOver koper wordt veel beweerd. Wij lieten het meten. In deze collectie staan de producten waarvoor we onafhankelijke testresultaten hebben laten vastleggen.\u003c\/p\u003e\n\u003ch2\u003eTwee laboratoria, twee vragen\u003c\/h2\u003e\n\u003cp\u003eRTC Laboratory keek naar de vraag waar het materiaal uit bestaat: 99,21% koper en 0,75% zink. URS Products and Testing keek naar de vraag wat er uit het product in water terechtkomt, volgens de Europese regels voor materialen die met voedsel in aanraking komen. In water dat in de \u003ca href=\"\/products\/kopero-premium-koperen-waterfles\"\u003ewaterfles\u003c\/a\u003e en de \u003ca href=\"\/products\/kopero-premium-koperen-mok\"\u003emok\u003c\/a\u003e had gestaan, was geen van negentien gemeten zware metalen aantoonbaar.\u003c\/p\u003e\n\u003ch2\u003eDe piramide\u003c\/h2\u003e\n\u003cp\u003eDe \u003ca href=\"\/products\/kopero-koperen-piramide-energizer-gedraaid\"\u003ekoperen piramide\u003c\/a\u003e komt niet in aanraking met voedsel, maar is van hetzelfde soort koper gemaakt. Zo weet je ook bij een decoratief stuk wat je in huis haalt. Het verschil tussen de gedraaide en de gladde versie staat in de \u003ca href=\"\/pages\/welke-koperen-piramide\"\u003ekeuzehulp piramides\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eWat een test wel en niet zegt\u003c\/h2\u003e\n\u003cp\u003eEen test laat zien waar een product uit bestaat en of het veilig is in gebruik. Over effecten op je gezondheid zegt het niets. Welke uitspraken over koper wettelijk zijn toegestaan, lees je in \u003ca href=\"\/blogs\/kennisbank\/koper-en-je-lichaam-wat-mag-je-wel-zeggen-de-8-officiele-eu-claims\"\u003ede officiële EU-claims over koper\u003c\/a\u003e. \u003c\/p\u003e\n\u003ch2\u003eVerder\u003c\/h2\u003e\n\u003cp\u003eDe zuiverheid staat uitgelegd bij \u003ca href=\"\/collections\/99-procent-zuiver-koper\"\u003e99% zuiver koper\u003c\/a\u003e, voedselveiligheid bij \u003ca href=\"\/collections\/voedselveilig-koper\"\u003evoedselveilig koper\u003c\/a\u003e. Alle rapporten staan in het \u003ca href=\"\/pages\/testdossier\"\u003etestdossier\u003c\/a\u003e. Alle vormen van drinkgerei vind je bij \u003ca href=\"\/collections\/drinkgerei\"\u003edrinkgerei\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"kopero-koperen-piramide-energizer-gedraaid","title":"Kopero Copper Pyramid Energizer Twisted","description":"\u003cp\u003eAn open pyramid of twisted copper wire: four equal triangles meeting at a single point, with 60 degree angles. There is nothing inside it and nothing around it, so you put something underneath and leave it there. \u003ca href=\"\/blogs\/knowledge-base\/how-to-use-a-copper-pyramid\"\u003eHow to use it\u003c\/a\u003e is set out step by step in the knowledge base.\u003c\/p\u003e\u003cp\u003eYou choose between 14.56 and 23.56 centimetres, and that is no arbitrary difference: the two sizes stand in almost exactly the golden ratio. The small one fits a desk, an altar or a bedside table and is meant for a single piece of jewellery, a crystal or a written intention. The large one makes room for a glass of water, several stones, herbs or fruit.\u003c\/p\u003e\u003cp\u003eIn the twisted version the copper runs up each edge as a visible spiral. The pyramid draws the large line to the apex, and the twist lays a second, finer movement over it. If you would rather have calm, unbroken edges, there is the \u003ca href=\"\/products\/kopero-copper-pyramid-energizer-smooth\"\u003esmooth pyramid\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eWhere the idea that shape does something comes from, and what of it was visible in the lab, is in \u003ca href=\"\/blogs\/knowledge-base\/shape-power-how-form-focuses-energy\"\u003eShape Power\u003c\/a\u003e and in \u003ca href=\"\/blogs\/knowledge-base\/pyramid-energy-from-a-french-trader-to-russian-fibre-optic-giants\"\u003ethe history of pyramid energy\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eHow to get the most out of your copper\u003c\/h3\u003e\u003cp\u003eAlign one side with a compass to the north-south axis and then leave it be. In the Manipal studies the shape did its work precisely at that alignment; if you move it, align it again.\u003c\/p\u003e\u003cp\u003ePick the pyramid up by the base, not by the apex. The edges are copper and therefore pliable, and at the point all the weight rests in one place.\u003c\/p\u003e\u003cp\u003eThe copper discolours over the years, and that polishes back with lemon and salt (not too hard: salt is mildly abrasive and dissolves well in the lemon juice). Do it gently, following the direction of the twist. \u003ca href=\"\/blogs\/knowledge-base\/why-is-my-copper-turning-green-or-black-and-is-that-a-problem\"\u003eWhy is my copper turning green or black\u003c\/a\u003e explains what you do and do not need to do.\u003c\/p\u003e\u003cp\u003eWhat we can hand you is the source. The tradition runs from Bovis through Drbal to Golod, and at Manipal University peer-reviewed animal studies found lower stress hormones under a pyramid model than in a cube of the same dimensions: the shape did the work, not the shelter. What you experience yourself comes on top of that.\u003c\/p\u003e","brand":"Kopero","offers":[{"title":"Small (14.56 cm)","offer_id":54696183824725,"sku":"8720726791489","price":39.95,"currency_code":"EUR","in_stock":false},{"title":"Large (23.56 cm)","offer_id":54696183857493,"sku":"8720726791403","price":49.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/7259\/4005\/files\/kopero-piramide-gedraaid-klein-1.jpg?v=1791102152"},{"product_id":"kopero-koperen-piramide-energizer-glad","title":"Kopero Copper Pyramid Energizer Smooth","description":"\u003cp\u003eAn open pyramid of copper edges: four equal triangles meeting at a single point, with 60 degree angles. There is nothing inside it and nothing around it, so you put something underneath and leave it there. \u003ca href=\"\/blogs\/knowledge-base\/how-to-use-a-copper-pyramid\"\u003eHow to use it\u003c\/a\u003e is set out step by step in the knowledge base.\u003c\/p\u003e\u003cp\u003eYou choose between 14.56 and 23.56 centimetres, and that is no arbitrary difference: the two sizes stand in almost exactly the golden ratio. The small one fits a desk, an altar or a bedside table and is meant for a single piece of jewellery, a crystal or a written intention. The large one makes room for a glass of water, several stones, herbs or fruit.\u003c\/p\u003e\u003cp\u003eIn the smooth version the edges run calmly and unbroken to the apex, so the geometry itself carries the look. If you also want a visible spiral movement in the copper, there is the \u003ca href=\"\/products\/kopero-copper-pyramid-energizer-twisted\"\u003etwisted pyramid\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eWhere the idea that shape does something comes from, and what of it was visible in the lab, is in \u003ca href=\"\/blogs\/knowledge-base\/shape-power-how-form-focuses-energy\"\u003eShape Power\u003c\/a\u003e and in \u003ca href=\"\/blogs\/knowledge-base\/pyramid-energy-from-a-french-trader-to-russian-fibre-optic-giants\"\u003ethe history of pyramid energy\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eHow to get the most out of your copper\u003c\/h3\u003e\u003cp\u003eAlign one side with a compass to the north-south axis and then leave it be. In the Manipal studies the shape did its work precisely at that alignment; if you move it, align it again.\u003c\/p\u003e\u003cp\u003ePick the pyramid up by the base, not by the apex. The edges are copper and therefore pliable, and at the point all the weight rests in one place.\u003c\/p\u003e\u003cp\u003eThe copper discolours over the years, and that polishes back with lemon and salt (not too hard: salt is mildly abrasive and dissolves well in the lemon juice). Do it gently, along the edges. \u003ca href=\"\/blogs\/knowledge-base\/why-is-my-copper-turning-green-or-black-and-is-that-a-problem\"\u003eWhy is my copper turning green or black\u003c\/a\u003e explains what you do and do not need to do.\u003c\/p\u003e\u003cp\u003eThe tradition runs from Bovis through Drbal to Golod, and at Manipal University peer-reviewed animal studies found lower stress hormones under a pyramid model than in a cube of the same dimensions: the shape did the work, not the shelter. What you experience yourself comes on top of that.\u003c\/p\u003e","brand":"Kopero","offers":[{"title":"Small (14.56 cm)","offer_id":54696183923029,"sku":"8720726791595","price":39.95,"currency_code":"EUR","in_stock":false},{"title":"Large (23.56 cm)","offer_id":54696183955797,"sku":"8720726791601","price":49.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/7259\/4005\/files\/kopero-piramide-glad-klein-1.jpg?v=1791102153"},{"product_id":"kopero-premium-koperen-waterfles","title":"Kopero Copper Water Bottle","description":"\u003cp\u003eThis 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 \u003ca href=\"\/blogs\/knowledge-base\/tamra-jal-the-ayurvedic-tradition-of-drinking-water-from-copper\"\u003ethe article on tamra jal\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNine 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.\u003c\/p\u003e\n\u003cp\u003eYou choose between \u003ca href=\"\/blogs\/knowledge-base\/smooth-or-hammered-copper\"\u003esmooth and hammered\u003c\/a\u003e. 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.\u003c\/p\u003e\n\u003ch3\u003eHow to get the most out of your copper\u003c\/h3\u003e\n\u003cp\u003eStill 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 \u003ca href=\"\/blogs\/knowledge-base\/how-many-times-a-day-should-you-drink-from-a-copper-bottle\"\u003ehow often per day you should drink from a copper bottle\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe 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 \u003ca href=\"\/blogs\/knowledge-base\/maintaining-a-copper-bottle-cleaning-polishing-and-storage\"\u003ethe care article\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAnd 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 \u003ca href=\"\/blogs\/knowledge-base\/why-is-my-copper-turning-green-or-black-and-is-that-a-problem\"\u003ewhy is my copper turning green or black\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eStill weighing up copper, stainless steel and plastic? \u003ca href=\"\/blogs\/knowledge-base\/copper-vs-plastic-vs-stainless-steel-a-fair-material-comparison\"\u003eThe material comparison\u003c\/a\u003e 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.\u003c\/p\u003e","brand":"Kopero","offers":[{"title":"Smooth","offer_id":54697656189269,"sku":"8720726791397","price":59.95,"currency_code":"EUR","in_stock":true},{"title":"Hammered","offer_id":54697656222037,"sku":"8720726791380","price":59.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/7259\/4005\/files\/kopero-waterfles-glad-1.jpg?v=1791102152"},{"product_id":"kopero-premium-koperen-mok","title":"Kopero Copper Mug","description":"\u003cp\u003eThe mug is the only piece of Kopero drinkware with a handle, and that changes what you use it for. Copper conducts heat quickly, so a hot tea or coffee warms the wall within seconds. With the handle you still pick it up as normal.\u003c\/p\u003e\n\u003cp\u003eThat same conductivity works the other way round just as well: cold water in a copper mug feels cold in your hand almost at once.\u003c\/p\u003e\n\u003cp\u003eFour hundred millilitres is a generous cup of coffee or tea, or a portion of water that can rest overnight in the tamra jal tradition. More on that in \u003ca href=\"\/blogs\/knowledge-base\/tamra-jal-the-ayurvedic-tradition-of-drinking-water-from-copper\"\u003ethe article on tamra jal\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThere is felt on the base. That saves scratches on a wooden table and it saves noise when you set the mug down. Beyond that you choose between \u003ca href=\"\/blogs\/knowledge-base\/smooth-or-hammered-copper\"\u003esmooth and hammered\u003c\/a\u003e: an even surface, or a hand-worked pattern that breaks the light. The mug itself is formed from a single piece of copper, with no seam. The handle is brazed on separately, on the outside. Nothing of that joint reaches the inside, so your drink only touches the copper mug itself.\u003c\/p\u003e\n\u003cp\u003eThere is another reason copper became the tradition. In EPA tests, cleaned copper killed more than 99.9% of bacteria such as MRSA and E. coli within two hours, and since 2008 it has been registered in the United States as an antimicrobial material. It is also a trace element your own body uses, from energy metabolism to the transport of iron in your blood. Stainless steel and plastic are inert and do neither. The evidence is in \u003ca href=\"\/blogs\/knowledge-base\/can-copper-really-kill-bacteria-the-evidence-from-epa-to-southampton\"\u003ecan copper really kill bacteria\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to get the most out of your copper\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/knowledge-base\/coffee-and-tea-from-a-copper-mug\"\u003eCoffee and tea are for drinking fresh\u003c\/a\u003e: pour, drink and rinse the mug afterwards. Lemon tea, sharply acidic fruit tea and soft drinks are at their best in glass.\u003c\/p\u003e\n\u003cp\u003eWash the mug by hand and keep the felt base as dry as you can; the dishwasher is bad news for both. The rest of the care routine is in \u003ca href=\"\/blogs\/knowledge-base\/maintaining-a-copper-bottle-cleaning-polishing-and-storage\"\u003ethe care article\u003c\/a\u003e, and the natural darkening is covered in \u003ca href=\"\/blogs\/knowledge-base\/why-is-my-copper-turning-green-or-black-and-is-that-a-problem\"\u003ewhy is my copper turning green or black\u003c\/a\u003e.\u003c\/p\u003e","brand":"Kopero","offers":[{"title":"Smooth","offer_id":54697656451413,"sku":"8720726791458","price":34.95,"currency_code":"EUR","in_stock":true},{"title":"Hammered","offer_id":54697656484181,"sku":"8720726791588","price":34.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/7259\/4005\/files\/kopero-mok-glad-1.jpg?v=1791102152"}],"url":"https:\/\/kopero.eu\/collections\/onafhankelijk-getest-koper.oembed","provider":"Kopero","version":"1.0","type":"link"}