this post was submitted on 23 Nov 2024
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[–] [email protected] 18 points 2 days ago (5 children)

I need to descale my coffee machine. How do I do that?

[–] [email protected] 20 points 2 days ago* (last edited 2 days ago) (1 children)

Read the manual. It might have a descale mode that pushes some descaling chemical through the pipes without heating it.

Source: I did it like a month ago. The water that came out was quite pulpy.

[–] [email protected] 11 points 2 days ago (1 children)

I cannot describe the expression I made at the word "pulpy" but "horrified" is probably as close as I'll ever get.

[–] [email protected] 3 points 2 days ago* (last edited 2 days ago)

It's best not to think about the non-water stuff that exists in the water pipes. I once had to open up our 200-litre water heater (which supplies the entire house) to replace the heater coil, and now have to live with the knowledge of what, and how much of it, was inside. "Ignorance is bliss" couldn't be more accurate.

[–] [email protected] 14 points 2 days ago (2 children)

White vinegar works, or you can pick up "sour salt" in the Kosher section, which is citric acid and since you don't need much the rest is handy as a substitute for lemon juice. Dilute with plenty of water, run the machine, it removes calcium deposits.

[–] [email protected] 5 points 2 days ago

Good call. I was going to suggest citric acid. It's what we use for our electric kettle.

[–] [email protected] 3 points 2 days ago (1 children)

what if i want some tasty calcium in my diet

[–] [email protected] 5 points 2 days ago

Oh, that kind has microplastics mixed up in it, and it slows down the coffee maker. You want tasty calcium you're going to absorb properly, try this:

https://www.amazon.com/dp/B004KWGHCO

(Just the easiest link for a description, not pushing Amazon)

[–] [email protected] 15 points 2 days ago (1 children)

I usually just run vinegar through it every once in a while and then run a few pots of just water to get rid of any residual vinegar. Beware, it'll make the house smell like vinegar for the rest of the day.

[–] [email protected] 9 points 2 days ago

Might want to try citric or lactic acid instead at a proper dilution.

[–] [email protected] 1 points 2 days ago

You gotta use a tougher kind of scale like a dragon scale to scrape it off!

[–] [email protected] 1 points 2 days ago

I used this stuff called Durgol to descale my CNC spindle and it worked wonderfully.