Big Saving! Huge Deals Today. SHOP NOW

Do Coffee Makers Boil Water? Let’s Reveal The Truth!

Photo of author

By Rowena Cyr

Your Coffee, Your Way - Discover Great Deals Today! Click Here To See!
Do coffee makers boil water?

Coffee is a crucial part of several people’s routines daily. Whether it’s a morning cup or an energy-boosting brew, this drink is a must-have for millions of coffee lovers worldwide.

But have you ever wondered: Do coffee makers boil water? This blog post will uncover the science behind coffee makers and why they don’t have this function.

Let’s scroll down to discover in detail!

Do Coffee Makers Boil Water?

The answer is No! Most coffee makers can bring water between 180°F – 205°F. This range isn’t enough to boil water because the water boiling point is 212°F.

Besides, boiling water can over-extract your coffee, which causes it to taste bitter and unpleasant.

Keep reading to have an in-depth explanation of why it’s not advisable to boil water in your coffee machine!

The Function Of Coffee Makers

Coffee makers are a favored household appliance coffee enthusiasts use to brew a fresh cup of coffee.

These machines use a complex process that starts with heating water to a specific temperature using a heating element.

A thermostat controls the temperature to ensure the water is heated accurately. It is crucial to extract the best flavor from the coffee beans.

Once the water reaches the desired temperature, it flows over ground coffee beans. A filter will separate the coffee grounds from the liquid.

This process ensures that the coffee you make your drink perfectly every time, with the right balance of flavor and aroma.

It’s important to note that coffee makers do not boil water, as boiling water can lead to the over-extraction of coffee and a burnt taste.

How the machine works

The Science Behind Coffee Extraction

When you brew coffee, hot water extracts soluble compounds from the grounds, resulting in a flavorful cup of coffee.

This process, called extraction, gives coffee its unique and complex taste. However, it’s not always easy to create a perfect cup of coffee.

The temperature also affects the taste of your drink. If the water is excessively hot, your brew will taste bitter and unpleasant. That said, your cup will be flavorless if you prepare it with cold water.

The ideal brewing temperature for coffee is between 195-205°F. This range allows for optimal extraction of the coffee beans, resulting in a flavorful and satisfying cup of coffee.

However, water boils at 212°F. If coffee makers were to boil water, the water temperature would be too high, resulting in burnt coffee.

Moreover, boiling water with coffee makers isn’t hot enough for coffee extraction and can lead to an astringent taste.

The Impact Of Boiling Water

Boiling water, while a standard method for making coffee, carries with it risks that can cause damage to the coffee maker itself. In particular, boiling water creates steam, building pressure inside the coffee maker.

This pressure can cause the coffee maker to malfunction and lead to leaks or other issues. Moreover, boiling water can result in mineral buildup inside the coffee maker, clogging the machine and affecting its performance.

Therefore, you must be cautious when using boiling water to make coffee. Also, take the necessary steps to prevent damage to your machine.

Impact of boiling water

Water Temperature Of A Standard Coffee Maker

The water temperature of a standard coffee maker is an essential factor affecting your coffee’s taste and quality.

The coffee will be under-extracted if the water is too cold, resulting in a bland and sour taste.

On the other hand, overly hot water will cause your coffee to be over-extracted with bitterness.

You must also ensure the water temperature lies in the ideal range to achieve the perfect drink.

The ideal temperature for brewing coffee is between 195°F – 205°F. This range allows for the proper extraction of coffee beans, resulting in a delicious cup of coffee.

However, the temperature of a standard coffee maker can vary. Most machines have a heating component to heat the water 175°F – 185°F.

This range is slightly lower than the ideal temperature range. Thus, it can result in a weaker and less flavorful drink.

Several factors can affect the water temperature of a standard coffee maker. The altitude where you brew your cup affects is one of them.

At higher altitudes, the water boiling point decreases, which will affect the water temperature.

Another factor is the type of coffee maker used. Like the French press, automatic drip coffee makers tend to have a lower temperature range than other brewing methods.

Can A Coffee Maker Sterilize Water?

Sterilizing water means killing all the microorganisms (bacteria, virus, protozoa) in the water.

It is essential when the water may be contaminated and cause illness if consumed.

It is crucial to know how a coffee maker works to understand whether it can sterilize water.

As shared above, most coffee makers use a heating mechanism to heat water to approximately 200°F.

While these machines can heat water to a high temperature to kill some bacteria, it isn’t hot enough to sterilize water.

Unfortunately, a coffee maker cannot sterilize water. Sterilization requires heated water of at least 212°F for several minutes.

Besides, these machines don’t aim to remove contaminants from the water. Hence, any impurities in the water will remain.

Water sterilization

Which Are Alternatives To Boil Water?

Below are some of the best alternatives to boiling water for your brew instead of coffee makers.

Stovetop Kettle

A stovetop kettle is the most popular and traditional way to boil water. It is straightforward and effective to heat water for your drink.

Follow the steps below to use this tool:

  • Pour water into the kettle.
  • Place it on the stove.
  • Turn on the heat.
  • Once you notice the water boiling, turn off the stove.
  • Pour the hot water into your cup.


If you cannot access a stovetop kettle or coffee maker, use a microwave to heat water. Here are simple steps to use this appliance:

  • Pour water into a microwave-safe mug.
  • Heat it for about two minutes.
  • Be careful when removing the container from the microwave, as it can be hot. You can then use the hot water to make your coffee.

Electric Kettle

An electric kettle is another excellent alternative to boiling water. It is fast and convenient.

Moreover, some models even have temperature control settings. Hence, you can set the suitable temperature for your drink.

Follow the guides to use this utensil:

  • Fill the kettle with water.
  • Plug it in.
  • Wait for it to boil.
  • When the water gets hot enough, pour it into your cup.

Solar Cooker

If you’re environmentally conscious, a solar cooker is a great way to boil water. The steps are simple, including:

  • Fill a container with water.
  • Place it in the solar cooker. The sun will heat the water and eventually bring it to a boil.
  • This method may take longer than other options, but it’s a great way to use renewable energy.
Best alternatives

How To Boil Water In A Coffee Maker?

If your machine can reach the boiling point of water, follow the steps below to boil water properly:

Step 1: Fill The Coffee Maker With Water

The first step is filling the reservoir with the desired water amount.

Do not fill it above the maximum fill line indicated on the coffee maker.

Step 2: Turn The Coffee Maker On

Next, turn on your machine. Let it heat up. Depending on the model, it may take a few minutes.

Step 3: Place A Heat-Resistant Container Under The Drip Area

Once the coffee maker has heated up, place a heat-resistant container under the drip area where the coffee usually drips out.

Step 4: Start The Brewing Process

Press the brew button on your machine to start brewing. The hot water drips from the coffee maker and into the heat-resistant container.

Step 5: Wait For The Water To Boil

Wait for the water to boil. Depending on the water amount you fill in the machine, it may take a few minutes.

You can tell the water has boiled when tiny bubbles start forming on the water’s surface.

Step 6: Turn Off Your Machine

Once the water has boiled, turn off the coffee maker and remove the heat-resistant container from under the drip area.

How to boil water using this machine

How Long Can You Leave Water In A Coffee Maker?

Not leaving water in a coffee maker for more than 24 hours is generally advisable. After this period, the water becomes stagnant and can develop bacteria.

If you intend not to use your equipment for an extended period, empty the reservoir and let it air dry.

Leaving water in your machine for a long time can cause bacteria to grow. Hence, it can cause illnesses (diarrhea, vomiting, stomach cramps).

The longer the water sits, the greater the risk of bacteria forming. It is especially true if the coffee maker is not cleaned regularly.

Additionally, if the water in the reservoir is left for too long, it can also cause the machine to malfunction or produce stale-tasting coffee.

It is vital to clean your coffee maker regularly to prevent bacterial growth and ensure that your coffee tastes fresh.

It includes cleaning all the components after each use, including:

  • The reservoir
  • Carafe
  • Filter basket

Furthermore, it is best to descale your coffee maker every three months to remove any mineral buildup that can affect the taste and performance of your machine.

If you want a detailed guide on cleaning this machine, you can watch this video:

The Bottom Line

In conclusion, coffee makers do not typically boil water but heat it to a specific temperature range ideal for coffee brewing.

While it is a small detail, the water temperature will significantly affect the taste and quality of your drink.

Ensuring that your machine heats the water to the right temperature range to create a delicious cup every time.

Bodum Bistro Burr Coffee Grinder, 1 EA, Black
Bodum Bistro Burr Coffee Grinder, 1 EA, Black
12 Adjustable grind settings allow users to go from Espresso to French Press with ease.; Holds up to...
Amazon Prime
Utopia Kitchen - French Press Coffee Maker,...
Utopia Kitchen - French Press Coffee Maker,...
Brews 8 coffee cups which is equal to 1000 ml; includes plastic measuring spoon; Perfect gift for...
Amazon Prime
Hario V60 Ceramic Coffee Dripper Pour Over Cone...
Hario V60 Ceramic Coffee Dripper Pour Over Cone...
Product Details: Size 2; 1-4 cup brewing capacity. W140×D120×H102mm. Red color
Amazon Prime
Chemex Pour-Over Glass Coffeemaker - Classic...
Chemex Pour-Over Glass Coffeemaker - Classic...
CHEMEX - simple, easy to use with timeless, elegant design; All CHEMEX Coffeemakers are measured...
Amazon Prime
Breville Precision Brewer Pid Temperature Control...
Breville Precision Brewer Pid Temperature Control...
Brushed stainless steel finished machine; Includes Pour Over Adapter; made from silicone shower head...

As an affiliate marketing website, we offer comprehensive Buying Guides for coffee enthusiasts, helping you navigate the world of Coffee Gear, premium Coffee Beans, and Coffee Brewing techniques. Please explore our website and unlock a world of exceptional coffee experiences at

Leave a Comment