Descale Your Mr. Coffee Optimal Brew Coffee Maker: Ensure a Perfect Cup Every Time!

Discover how to descale your Mr. Coffee Optimal Brew coffee maker in a few simple steps. Learn the importance of descaling to remove mineral buildup and maintain the optimal performance of your coffee maker, resulting in a flavorful and enjoyable coffee experience.


Maintaining the optimal performance of your Mr. Coffee Optimal Brew coffee maker is crucial for brewing a perfect cup of coffee. In this article, we will guide you through the process of descaling your coffee maker, ensuring the removal of mineral deposits and preserving the quality of your coffee. By following our easy steps, you can enjoy a consistently delicious and satisfying coffee experience.

Mr. Coffee Optimal Brew Coffee Maker

The Mr. Coffee Optimal Brew coffee maker is designed to deliver exceptional coffee flavor and convenience. With its advanced features and sleek design, this coffee maker provides a seamless brewing experience. The Optimal Brew technology ensures that the coffee is brewed at the ideal temperature, resulting in rich and robust flavor. Its programmable settings, large capacity, and durable construction make it a popular choice among coffee enthusiasts.

Understanding Descaling and Its Importance

Over time, mineral deposits, often referred to as limescale, can accumulate inside your Mr. Coffee Optimal Brew coffee maker. These deposits are caused by the minerals present in your water and can negatively impact the performance and taste of your coffee. Descaling is the process of removing these mineral deposits and is essential for maintaining the optimal performance of your coffee maker.

How to Descale Your Mr. Coffee Optimal Brew Coffee Maker in a Few Simple Steps

Your Mr. Coffee Optimal Brew’s Clean Indicator will light up when it’s time to descale the coffee maker. This will happen every 90 uses or when the brew cycle starts taking longer to complete. The indicator light will go off only after you run a full cleaning cycle, which takes about 45 minutes.

Step 1: Gather Your Materials

To descale your Mr. Coffee Optimal Brew coffee maker, you’ll need:

Step 2: Prepare the Coffee Maker

Make sure your coffee maker is unplugged and cooled. Remove any used coffee grounds and coffee  filters, empty the carafe, and clean the exterior of the machine using a damp cloth or sponge. Place a clean, empty filter in the brew basket and place the empty carafe in the unit.

Step 3: Water filter

Remove the charcoal water filter disk from its holder

Step 4: Mix and Add the Descaling Solution

Follow the manufacturer’s instructions to mix the descaling solution with clean water. Add the descaling solution or 6 cups of vinegar to the water reservoir of your coffee maker.

Step 5: Start the Cleaning Cycle

Turn on the coffee maker and press the “Clean” button. The LCD screen will count down the cleaning cycle from 45 minutes. When the cycle is complete, the “Clean” light will turn off and the coffee maker will turn off.

Step 6: Rinse and Repeat

Once the descaling cycle is complete, discard the solution from the carafe. Rinse the water reservoir thoroughly with clean water. Fill the reservoir with 10 cups of fresh water and initiate a brew cycle to flush out any remaining descaling solution. Repeat this rinsing step twice to ensure all traces of the descaling solution are removed.

Step 7: Final Rinse and Reassembly:

After the final rinse cycle, empty the water reservoir and carafe. Rinse them both with clean water to ensure no residue remains. Reassemble the coffee maker by placing the carafe back onto the warming plate and inserting any necessary filters or coffee grounds. Your coffee maker is now ready to use.

Tips for Maintaining Water Quality and Preventing Scale Buildup

Use Filtered Water

Using filtered water can significantly reduce the mineral content in your brewing water, thereby minimizing the formation of limescale. Consider using a water filter or filtering pitcher to ensure the water used in your coffee maker is of the highest quality. Note: the Mr. Coffee Optimal Brew coffee maker does include a charcoal water filter that will remove some chlorine, tastes, and odors from your tap water, however, these are not certified by NSF or ANSI for safety and effectiveness so you’re better off using your own water filter that has been certified by NSF or ANSI. That said, if you do use the Mr. Coffee charcoal water filter in your coffee maker, they do recommend replacing it about every 30 days or every 30 uses.

Regular Cleaning

In addition to descaling, regular cleaning of your Mr. Coffee Optimal Brew coffee maker is crucial. Clean the exterior of the coffee maker with a soft cloth or sponge, and wash the carafe, brew basket, and any removable parts with warm, soapy water. This will help remove any coffee residue and prevent the buildup of oils and minerals.

Avoid Harsh Cleaners

When cleaning the exterior of your coffee maker, avoid using harsh cleaners or abrasive materials that can damage the surface. Instead, use a soft, damp cloth to wipe away any dirt or stains.


Regular descaling is essential for maintaining optimal water quality and prolonging the life of your Mr. Coffee Optimal Brew coffee maker. By following the simple steps outlined in this article and implementing preventive measures, such as using filtered water and regular cleaning, you can enjoy a consistently delicious and flavorful coffee experience.

Remember, a well-maintained coffee maker ensures that the flavors and aromas of your coffee are not compromised by limescale buildup. Take the time to descale your Mr. Coffee Optimal Brew coffee maker regularly, and savor the rich and satisfying coffee it brews. With proper care, your coffee maker will continue to provide you with the perfect cup of coffee for years to come.


How often should I descale my Mr. Coffee Optimal Brew coffee maker?

The frequency of descaling depends on the hardness of your water and the frequency of use. As a general guideline, it is recommended to descale your coffee maker every 2-3 months. However, if you notice a decrease in performance or an alteration in the taste of your coffee, it may be an indication that descaling is needed sooner.

Can I use vinegar as a descaling solution for my Mr. Coffee Optimal Brew coffee maker?

Yes. Per manufacturer instructions you may use 6 cups of undiluted distilled white vinegar to descale your Mr. Coffee Optimal Brew coffee maker.

Is descaling necessary if I have a water softener installed?

Even if you have a water softener installed, descaling is still necessary. Water softeners reduce the hardness of water by removing minerals, but they do not eliminate them entirely. Descaling helps remove any residual mineral deposits that may have accumulated over time, ensuring the continued performance and longevity of your coffee maker. That said, if you have moderately to severely hard water, you may benefit from installing a water softener in your home.

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