Hey guys Im a proud owner of Delonghi Magnifica S automatic espresso machine for 6 months now. Our water is super hard with loads of scale and I have been cleaning (descaling) machine with Delonghi EcoDecalc, but friend recommends this one (much cheaper):

Is this safe to use? It says it contains citric, lactic and malic acid. It also says to use 50 ml on 500 ml of water while Delonghi EcoDecalc should be 100 ml on 1700 ml (I think) of water. Its almost 2x difference and I was thinking if acids are simmilar I should use 100 ml of acid for full tank anyway.

We abuse our machine by making loads of coffe and tea. With scale settings on max we get descaling alarm every 3-4 weeks. It used to be on medium settings, but machine almost clogged completely once…so thats why max settings. Delonghi liquid is not cheap, but dont want to take any risk for 30€ a year. On the other hand, I dont want to pay 10€ for a 2-3€ product just because it says Delonghi on the bottle.

What do you use for your machine? How often do you descale?

  • user134450@feddit.de
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    7 months ago

    Note that citric acid works a bit more nuanced than many other descalers: it acts as a chelating agent at high concentrations (2x the Ca2+ concentration) and is more effective at removing scale because of this effect, but at lower concentrations the effect might actually be reversed because it can form solid calcium citrate, which has a very low solubility in water.

    If you are using citric acid based descaler you should make sure that you are always using enough of it to avoid the formation of calcium citrate.

  • Zorg@lemmy.blahaj.zone
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    7 months ago

    Everyone else is saying vinegar, which will certainly work.
    But if you’re like me and cannot stand the stench of vinegar, then I recommend citric acid. 2 tablespoons to a liter of water is a good place to start, but you can most likely find dosage specific to your machine with some googling.
    Also, you can get ~2kg of citric acid for 15~25 $or€. I use it to descale everything from coffee contraptions, to shower heads; and a big bag of it lasts us 1½ years. Our water is fairly hard too, about 160 TDS.

  • dual_sport_dork 🐧🗡️@lemmy.world
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    7 months ago

    All you need is the acidity. Descaling happens by the acid neutralizing the alkaline scale, which is calcium based, and turning it into its salt form which is water soluble. Any acid will work. You just need enough molar quantity of it to react with however much scale is in your machine.

    Citric acid works. Acetic acid (vinegar) works. Carbonic acid would probably work… Hydrochloric, sulfiric, or nitric acid would work too, but would be a monumentally bad idea.

    Just use some vinegar or citric acid in water. There’s no need to pay more for fancy descaling products. I have a ~$6000 Miele coffee machine. It came with a few of its fancy cleaning and descaling tablets. When I ran out of those, I just started using bulk citric acid in the thing, bought in multi-pound quantity from the internet. Two pounds of the stuff is like 10 bucks, and will probably last you the rest of your life. For reference, my machine reports that it has dispensed about 8000 cups of coffee in its little report doohickey and the generic citric acid dissolved in water works just as well as the fancy Miele branded tablets that are $22 a pack.

    • rambos@lemm.eeOP
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      7 months ago

      Thx, the link is broken but I know what you mean. I never thought about that, but I was thinking about filtration system thut mounts under the sink. Would like to avoid aditional container if possible, but I should learn more about water filtration first. I have water filter in coffe machine. Not sure does it soften the water, but it doesnt help much. Is brita better for that purpose or should I use both?

  • givesomefucks@lemmy.world
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    7 months ago

    Just use vinegar.

    Anytime you’re talking about scaling due to hard water, just use vinegar.

    Even with a dishwasher, throw an upright bowl in there with some vinegar.

    There might be some special products that work a teeny bit better, but they don’t cost a dollar for a gallon.

    • stephaaaaan@lemmy.world
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      7 months ago

      Dishwashers usually have a water softener integrated with a salt depot that you need to fill up on a regular basis. The water hardness needs to be configured accordingly.

  • Imgonnatrythis@sh.itjust.works
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    7 months ago

    Will emphasize what’s already being said about food grade white vinegar. However, I’ll put a plug in for a Reverse osmosis system. No longer super expensive and filters last years. Pretty much eliminates scaling but more importantly you are going to get a better tasting brew. Excellent daily drinking water too.

    • leverage@lemdro.id
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      7 months ago

      All the expensive coffee machines say not to use RO water. Apparently RO water is slightly acidic and can damage the copper heating elements over time. I’ve a RO system and love the taste (really lack of any flavor), but stopped using it on my coffee machines.

      • Imgonnatrythis@sh.itjust.works
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        7 months ago

        Works great in my expensive Jura for past 10 years!

        I’m pretty serious about water. I ph test it after filter changes (you can get decent ph meter for not too much) and if you are comparing to hard water which will be buffered by definition, yes will read as more acidic (but still well out of corrosive range) , but I imagine flushing high acid descalers through it periodically would be more stressful for the system than continuous RO water. The taste is so worth it alone. You will notice a difference. If you are really concerned you can do what I do for my RO drinking water. I add just a couple drops of minerals to it. I’ve checked the pH and this raises it and buffers it. Would still be way less gunky to the system than hard tap water.

        • evasive_chimpanzee@lemmy.world
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          7 months ago

          RO water can get more acidic simply by absorbing co2 from the air. It really doesn’t actually matter, though, unless you are letting it sit open to the air for a while. Even if the pH does get low, it shouldn’t matter much cause the titratable acidity would be really low