Why do you need to put cold water into your coffee maker?

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I was advised against using hot water in my coffee maker, but I was never told why. Any connoisseurs have input for me? I do use cold water now but I’d like to know why. Thank you!

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JW March 5, 2010 Coffee Maker Coffee, into, Maker, need, water 3 Comments 237 views

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3 Responses to “Why do you need to put cold water into your coffee maker?”

1

Judge Not says:

March 5, 2010 at 10:03 pm

I’ve heard that hot water can have more metal in it. Maybe it leaves deposits?
2

rayray21_99 says:

March 5, 2010 at 10:42 pm

that is mainly in a perk pot. In a perk pot if you use hot water it will fool the thermostat and not perk for the full time. for a drip pot i am not sure why becuse the pot heats the water first.
3

singletrack65 says:

March 5, 2010 at 11:24 pm

Cold water is straight from your water supply, hot water has been sitting in your hot water heater for quit a while picking up minerals and rust that can alter the coffee flavor & build up faster in your machine.

I use a Pur water filter to keep the excess impurities to a minimum. You’ll still want to descale your machine regularly to keep it functioning at peak levels. Many machines don’t heat water enough for perfect extraction & mineral build-up will make it worse as well as reduce the life of your machine.

Cold water is always best when food is involved (I run the tap for a few seconds to clear out the pipe) since the same minerals may affect the food’s flavor as well.