Best Coffee Makers For Hard Water

If you’re a coffee-lover, you must know that hard water definitely has an impact on the flavor and how the coffee turns out, while on the other hand, roasted coffee beans consist of compounds such as eugenol, citric acid, and lactic acid which have an impact on how the coffee turns out as well, they give smell and taste which are the key things to a good coffee.

However, if you mix these compounds with tap water, the flavor will depend on water’s complexity, while sometimes it is for the bad, and sometimes is for the worse. Now, as for the hard water and the guideline of this topic, such water has higher levels of ion in it, let’s mention calcium and magnesium, while the higher the presence of ions in the water, the harder the water becomes.

Other than that, these compounds that we just mentioned are sticky, which afterward allows them to grab on to the compounds in the coffee beans, which results in different tastes, not that complicated right?


For this article, I took in consideration all the bad and the good that can occur, while I did some research on the best coffee maker for hard water in the market, and I came up with a list of 5, five of which are highly-rated and very popular with a performing reputation with hard water.

So, I’ll be reviewing each coffee maker in detail where I’ll be pointing out even their slightest details in order to give you the most accurate and precise information that I can.

Now, let’s not wait for any further and get straight into the specifics to see what makes these coffee makers be so special.

The Top 5 Best Coffee Makers For Hard Water

5. Hamilton Beach FlexBrew Coffee Maker

Our last product is a Hamilton product, and I take it you’ve heard of this brand since it has been around for decades now.

This particular model comes in four different versions, black, and silver which we are currently reviewing, black, black and stainless, and white.

With the FlexBrew you have two ways to brew your coffee, either brew a full pot using your favorite grounds on the thermal carafe side or make a cup for yourself using a Keurig K-Cup Pod, or another way is grounds on the single-serve side with this 2-in-1 Coffee maker.

Did we mention that the Hamilton FlexBrew is an Amazon’s choice coffee maker, it has thousands of positive reviews on Amazon, and it’s the best mid-range option that you can find, well mid-range it’s not maybe the best term but that’s what I consider it to be?

To continue, the FlexBrew has a 12-cup carafe side with a permanent filter, while for more convenience, it features a programmable timer, auto pause and serves and 2-hour auto-shutoff. Two hours auto-shutoff is maybe too much, but that’s what you get considering the fact that this particular model is made with quality in mind, and to be used approximately 6 hours per day, so if you live alone, I doubt that you’ll ever encounter any problems with the Hamilton FlexBrew.

Also, the pod holder and single-serve grounds basket are included, while on the other hand, the Flexbrew features a cup rest that can adjust to fit tall mugs and doubles as storage, but that’s not all, there’s also a pod-piercing needle that removes for easy cleaning to prevent clogging.

For your information, unlike other comparable models in the market, the FlexBrew has separate water reservoirs, each brewer has its own water reservoir which is pretty easy to refill and it features a water window so you can always know which brewers have how much water, pretty impressive right?

Single-serve brew time takes approximately 3 minutes, it makes a strong great-tasting cup of coffee, while it saves you energy because rather than heating water continuously, flex brew only heats the water when you’re ready to brew.

To sum up, Hamilton FlexBrew Coffee Maker is a great product to go with, it has an exceptionally good performance even with hard water, and as for the sake of the topic, I would highly recommend this model to those looking for a mid-range product that comes with great versatility and durability, while it also packs a plethora of premium features within.


4. Touch Choice Single Serve Coffee Brewer 

This is more of a high-end coffee maker which comes at a relatively high-price, it is extra easy-to-use while it also comes with a very unique design, it looks minimalistic and it has a compact and small construction which can fit in the toughest places.

For making coffee, you simply choose the preferred cup size to brew a bold cup with Coffee shop quality every time, while on the other hand, the extra-large removable 90oz water tank minimizes re-filling, but can be detached for a refill, the hinged tank lid can be utilized for pour-in refilling. For more convenience, you can also remove the drip tray, which is great because it saves you some effort, while the automatic power-off features will save you money on your electricity bill.

If you didn’t know, Touch brewers brew at the optimum temperature, up to 200-degrees F for extracting full-bodied flavor.

Since it has an optimum brewing temperature, Touch brewers have an extra efficient brew cycle that makes sure there is as much water-coffee combination as possible, which results in a richer, flavored and bolder taste in every cup.

In addition, you are given the option to choose from three different brew strengths such as mid, medium, and bold.

Unlike the other products that we’ve mentioned, this particular model has a faster technology that starts brewing in under 2 0 seconds, while as an addition, Touch brewers heat only the water needed demand, instead of heating the entire tank of water, this makes them as Energy-efficient and reliable as they are fast.

Moreover, you can also choose from a variety of cup sizes, basically, you have 8 options that you can choose from, 6, 8, 10, 12, 14, 16, 18 oz and 26 oz carafe. Also, with this model, there is also a refuel Jumbo cup included which can brew up to four cups at once, while for more convenience, it is compatible with all K-cup pods, generic cups, Touch bold and plus.

To conclude, if you are looking for a high-end coffee maker, the Touch Choice Single Serve Coffee Brewer would be your best pick. Although you should consider the price since this particular model comes with a relatively high-price.

Nonetheless, if you ever decide to purchase this product, I assure you won’t regret your decision because this model offers much more than you’d expect, and it also packs great durability, so it’s going to last you for many years to come.

3. Braun KF6050WH

Mid-way today, we have the Braun’s KF6050WH, and just like our other listed products, we made sure to include every high-rated and popular coffee maker, while this one has received countless rave reviews due to the fact that has a multi-pronged technological approach to creating a coffee maker that delivers an exceptional coffee quality.

What’s more impressive is that the Braun KF6050WH features multiple coffee settings, starting from a full one cup to a full pot.

Other than that, the coffee machine is also programmable, you can program the timer and auto-shutoff features, but that’s not all, you can also mess around with the brew-pause system which is very useful because it allows you to pour a cup of coffee during the brew cycle.

In addition, this particular model has such a charcoal filter that purifies the water in the machine, which means that it eliminates some of the mineral deposits that cause limescale.

It’s important to note that you can adjust the cleaning feature based on water hardness levels, thus, resulting in a flavored coffee with great smell and taste.

Although, during my research, I’ve read a couple of customer reviews reporting that this Brown model has a couple of issues with the “keep warm” controls on the machine malfunctioning.

Other statements that I’ve read are the complaints about the machine price, basically, customers report that this does not vary much from cheaper drip coffee maker models, but I don’t find that to be true honestly.

Moreover, the Braun gold-tone filter, unlike paper, it enhances the flavor of your coffee by allowing essential oils to reach your cup. On the other hand, a charcoal filter purifies brewing water, and a cleaning feature can be customized to different water hardness levels.

Furthermore, Braun’s BrewSense 12-Cup Drip Coffee Maker features a glass FlavorCarafe that seals in the fresh flavor by minimizing air exposure. The unique PureFlavor system makes your coffee at exactly the right temperature and brewing time to extract the flavor and aroma.

In your early mornings, the moments the luscious aroma of freshly brewed coffee fills the air, you know you’re going to have a satisfying cup of savory goodness.

Simply put, this reasonably priced coffee maker is great, however, before purchase, make sure you check the size because it matters since coffee makers come in different sizes, which means you have to make sure it fits where you want it to fit. Overall, this particular model will do a great job delivering you quality water in the morning, mid-day, or afternoon.

2. Cuisinart DCC-1150BK 

As for our second product, we have the Cuisinart DCC-1150BK.

This model became pretty popular due to the fact that it has a double-wall insulated thermal carafe and its brew-pause function.

Now, what I really like about this coffee maker is the self-cleaning function which is perfect for those who add hard water to their coffee, while on the other hand, it has a charcoal filter and permanent gold-tone filter that do a great job at working together while they ensure that there are no sediments into the carafe.

In addition, the carafe is stainless steel which is great because unlike some other coffee makers out there, this one keeps the coffee hot even after minutes have passed, and that’s what we all want, right?

However, there’s a downside as well, I don’t really like the fact that the water reservoir is small, and at some cases, I’ve read a couple of customer reviews where people were reporting that the coffee spills sometimes due to that small water reservoir that we just mentioned.

I think that it’s important to mention the negative sides as well, and one other things that I’ve seen customers complain about is the handle of the carafe that separates from the glass, the fill line on the carafe is located on the rear and it is hard to see, while the auto-timer features is also not that perfect, more precisely, the given switch must be moved from brew to auto-brew if you want it to begin working.

However, despite the popular belief, from my experience, I think that this particular model has a very easy to use operation, it has a 1- to 4- cup setting, the brew-pause function that we mentioned in the beginning, and the self-clean function.

There’s a 60-second reset function that remembers settings and where it was in the brewing process.

All and all, Cuisinart is a well-known company with delivering quality products, and it has been an all-time favorite for coffee lovers for decades now, so if you’re someone who really cares about brand reputation, this reasonably priced coffee maker will really make you enjoy your coffee, and its good performance with hard water will ease everything for you.
Check Price On Amazon

1. CHULUX Single Serve Coffee Maker

The Chulux Single Serve Coffee Maker is Amazon’s choice for those who want a coffee maker that performs well with hard water. It is the most rated product in this category, while if you do some research and read a couple of customer reviews from people who already purchased the product, you’re going to see that this model has thousands of satisfied users, which is also why I decided to include this machine into our list.

First and foremost, this particular model combines the one-cup coffee maker with a cleaning system that is capable of handling scale buildup, which saves you the time of cleaning it every now and then.

The CHULUX is for those coffee drinkers who enjoy k-cups while they use hard water, it’s durable, compact, while its size also makes it highly portable.

In addition, for the brew time, you won’t have to wait much, of course, it’s better than going into a coffee shop, it takes approximately 2 to 3 minutes.

I also like the fact that this coffee maker comes in a variety of colors, it’s great because it can match up with almost any fixture and kitchen decor. To be more specific, it comes in black, which is currently reviewing, blue, green, orange, and red.

In terms of usage, the Chulux has a one-button operation, it has an 800W heating element, and it has an on/off button for operation, while it features automatic shut-off function that goes off after 3 minutes which not only saves you time but also effort.

As for the water tank, the Chulux has a 12OZ built-in water tank plus a removable drip tray, while it supports standard size or larger cups.

Moreover, it is dishwasher safe, so for cleaning it, you won’t really need to do much, you just slide it under a faucet and let the water slide for a couple of seconds, and you’ll be good to go.

To conclude, if you’re looking for an affordable, yet reliable coffee maker which will perform exceptionally good with hard water, then the Chulux would be your ideal choice.

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How Does Hard Water Harm A Coffee Maker?

The process is quite simple actually, and I feel like I need to do an explanation about this. The compounds in the hot water make contact with the compounds in the coffee, thus, resulting in a combination of a solid, while this boosts the flavor of the coffee and over time, a mineral build-up occurs inside the coffee maker’s heating element.

Apart from that, the compounds that are left, they accumulate in limescale form and then, later on, that has a great impact on how your coffee turns out, while over time, this also damages your coffee maker and its performance overall.

Cleaning your coffee maker after this process occurs won’t really help, I mean you will need thorough cleaning materials, but still, your coffee won’t turn out that well even after you do all of that.

There are a couple of things that will make your coffee bad even after you clean it, such as the fact that your coffee won’t be hot enough, while if the coffee doesn’t heat up enough, then the full flavor of the coffee beans will be wasted, but more importantly, this mineral build-up that we mentioned can clog water flow which can, later on, break down the machine, and we don’t really want that, do we?

Frequently Asked Questions (FAQ)

Q: How does hard water affect coffee?

Obviously, water quality has a great impact on how the coffee turns out in the end, while the ideal water for coffee is soft water due to the fact that it contains less minerals, rather than mineral rich hard water.

Q: Should I use distilled water in my coffee maker?

Yes, you should use distilled water if you can, it’s the best way to get a mediocre, bitter cup of joe, and it doens’t really matter how good your coffee maker is.


As we got our introduction, our guides, and our reviews out of the way, by now I believe you have enough facts and arguments to support your decision.

Although no matter what you choose, all of these coffee makers will work flawlessly, while for more convenience, I highly suggest you read a couple of customer reviews just to see what others that have purchased the products are saying.

But either way, I’ve done all of that, so everything you read here is reliable, and as for our editor’s top pick for today, the Hamilton FlexBrew takes the lead, it is reasonably priced while it comes with many advantages compared to the other listed coffee makers. It is highly versatile and very feature-rich, which would be a great addition to any kitchen.

I hope this article was helpful to you, and if you have any questions regarding this topic, make sure you contact me and I’ll get back to you as soon as I can.

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