Published: November 1, 2025
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Just got this copper bottle from Amazon, and after the first use it developed black marks inside. I got it cleaned with lemon, salt, and hot water, and the marks got worse! Is this normal oxidation or poor-quality copper? Is it safe to drink from or should I return it? Experts,

Image in tweet by Swapnil Srivastav
Image in tweet by Swapnil Srivastav
Image in tweet by Swapnil Srivastav

Okey guys, I have successfully returned this cheap product from the brand Better Home, and I got a better picture of why we should not drink water from copper bottles! Here’s why: If you store water overnight in them, the copper content can exceed the WHO’s safe limit of 2 mg/L,

@theswapnilsri @theswapnilsri We’re sorry to know about the issue you’re facing with the order you’ve received. Kindly report this issue to our support team using the link here: https://amzn.to/37gR41M and we'll assist you further. -Kesha

@AmazonHelp Damn! So quick! Sure, will do that, Thanks

@theswapnilsri it’s not proper copper

@ganeshunwired Yess bhai, which brand should I use? This bottle was from The Better Home!

@theswapnilsri Don’t ever use copper to store water. It’s wrong to use copper for anything like water or food. Stainless steel is the best

@theswapnilsri I think that’s the UMAI brand. https://amzn.to/47xAzxx I’d suggest the copper bottle from The Better Home instead. https://amzn.to/47yDV3d

@varthaman21 It’s the same one! Don’t buy this!

@theswapnilsri I can assure u that most highest quality of copper was used to make ur bottle - El Nasir

Image in tweet by Swapnil Srivastav

@theswapnilsri Yes, oxidation will keep on happening , outer luster coating will keep on going, not an issue.

@SanjayChaturve4 But it’s harmful for regular use!

@theswapnilsri It is because of the improper quality of Copper. You can return it, ic accepted.

@TVPadmanabhan1 Already returned!

@theswapnilsri Return it

@ayeeejethiya Ohh sure, thanks!

@theswapnilsri Make it all black then water will reflect as black water which is of highest quality. Share results in 6 months with any health issues for awareness

@VarunBalwani Hahah can’t do experiments on myself! Immediately returned it! 😅

@theswapnilsri It darkens with time but not in initial usage, could be duped material copper polish

@siddyt13 I feel the same way!

@theswapnilsri was the sellers name nasir by any chance

@theswapnilsri @CSMFHT EA Nasir strikes again

@DalaiRama06 @CSMFHT What’s this EA Nasir thing? Got so many comments for him!

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