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Portland, Oregon (Zone 7b)
Oct 3, 2019 7:43 AM CST
Forgive the convoluted nature of this post..

Back in July, I was at a Community Fair and a man was selling copper cups and pitchers and yammering on about the health benefits of alkaline water and copper ionizing. I, by nature, am skeptic of those selling something. But, I happen to love copper and I bought a cup anyway.

Since then, I have been curious and I've google some. Tap water is already alkaline, so I'm wondering what the big deal is about copper raising the pH, if in fact it does? And then I read that heat lowers the pH of water, and that one really got me wondering. First, is that true? Second, would that have anything to do with why cold brew coffee is less acidic than hot brewed coffee?

The man's claims seemed contradictory. First, he said that copper raised the pH, then he went on to state that small amounts of copper would leach into the water, giving you micro nutrients of copper. I have to say, this made absolutely no sense to me. It has always been my understanding that plants need a slightly acidic environment in order to take up and utilize minerals. I wanted to argue with the man, but didn't, partly because, arguing with hucksters is typically pointless, and two, I am not that orally gifted. I do better when I have the time to think and write.

Meanwhile, when I remember to, I put water in my copper cup before going to bed and drink it in the morning (or water the plants with it sometimes.) I think the water tastes slightly better, but I'm inclined to believe that is because the chlorine in the water has had time to evaporate out.

What is your take on any of this?
Name: Rj
Just S of the twin cities of M (Zone 4b)
Garden Ideas: Level 1 Plant Identifier Million Pollinator Garden Challenge
Oct 3, 2019 2:19 PM CST
Snake oil salesman, the body regulates itself to a very narrow band on the ph scale, the water will not change it.
Isaac Asimov, once wrote, “Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won’t come in.”
Name: sumire
Reno, Nevada (Zone 6a)
Oct 4, 2019 12:00 PM CST
I would vote for chlorine evaporation.

Years ago, I had a copper tea kettle. It was a gift from my parents and I loved that pot. It was one of those whistling ones and allowed me to drink tea all day long. I didn't notice when the lining inside the pot cracked and began leaching copper into my tea.

Very slowly I started to feel sick. I was a graduate student at the time, so I thought the combination of stress and exposure to classrooms full of underclassmen had led me to catch whatever bug was drifting through campus. But months went by and I didn't get better. Slowly I started to have headaches and joint problems. Then I started getting lightheaded and short of breath.

Then one day, I forgot to set water out before cleaning my little fish tank with my pet apple snail, Ringo. The water out of the tap was not chlorinated but was VERY cold. So I boiled some water in my kettle and added it to the bucket with the cold and double checked the temperature before adding it to the tank.

The next day Ringo was dead. I started investigating. Looking into my tea kettle with a flashlight, it was full of hairline fractures. Leaving water in it overnight (something I almost never did) caused it to turn very slightly greenish. I had copper poisoned myself and my pet apple snail.

I threw out the kettle immediately. It took about a year to feel completely better. I never got another pet snail. And I never got another copper kettle either.
Name: Rick R.
Minneapolis, MN, USA zone 4
I was one of the first 300 contributors to the plant database! Garden Sages The WITWIT Badge Garden Photography Region: Minnesota Hybridizer
Seed Starter Plant Identifier Million Pollinator Garden Challenge
Nov 17, 2019 6:19 PM CST
Nowadays, most municipalities use chloramines that do not evaporate (rather than chlorine that does evaporate) to sanitize water. Your lucky if your city still uses the old chlorine method.
When the debate is lost, slander becomes the tool of the losers. - Socrates
Name: Sally
central Maryland
Seriously addicted to kettle chips.
Charter ATP Member Houseplants Keeper of Poultry Vegetable Grower Region: Maryland Composter
Native Plants and Wildflowers Organic Gardener Region: United States of America Cat Lover Birds Butterflies
Nov 18, 2019 7:28 AM CST
i'm pretty OK today, how are you? ;^)
Name: sumire
Reno, Nevada (Zone 6a)
Nov 18, 2019 7:00 PM CST
Trace element vitamin, use sparingly. Lots of copper is a neurotoxin.
canada 4b (Zone 8a)
Dec 8, 2019 1:12 PM CST
Tap water is neutralized on purpose to save the pipes it flows through. Distilled pure water is acidic at about 6pH and will crumble a copper pipe in a house, so home water distilleries use plastic lines to feed out of the tank. Copper is so poisonous that a copper drain line from an HVAC will never clog with biological material, and copper containing brass door knobs are self sterilizing.

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