How to Descale Keurig K-Supreme and K-Supreme Plus

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Are you ready to elevate your coffee experience to new heights? The secret lies not just in the beans but in the care and maintenance of your machine. 

“Descaling your Keurig [K supreme and K supreme plus] removes calcium deposits that can impact performance.” –

This guide provides detailed steps on how to descale your Keurig K Supreme and Supreme Plus, promising a tantalizing payoff – coffee that’s a cut above the rest.

Beyond the flavor, this guide will help you prolong the life of your coffee machine. Regular descaling ensures consistent performance and prevents unexpected malfunctions, providing you with peace of mind and more years of perfect coffee. 

Get ready to transform your coffee routine and the lifespan of your Keurig with this essential guide.

Descaling Overview for Keurig K-Supreme and K-Supreme Plus:

  • Prep: Turn off Keurig, empty the reservoir, and remove the K-Cup and charcoal filter. Set a mug on the tray.
  • Mix Solution: Add equal parts of Keurig descaling solution and fresh water to the reservoir.
  • Descale Mode: Power on Keurig and activate descale mode.
  • Run Cycles: Brew the solution until the “add water” light illuminates.
  • Rinse: Empty the solution, refill with clean water, and brew to rinse.
  • Check: Ensure the descale light/message is off, indicating completion.

Materials Needed:

  • Keurig Descaling Solution or a specialized commercial descaling solution (alternatively, distilled white vinegar can be used. For more detail, see our article about How to Descale Keurig K-Supreme with Vinegar )
  • Large ceramic mug (at least 12oz; avoid using paper, plastic, or glass)
  • Fresh Water
  • Access to a sink

Step-by-Step Guide to Descaling Your Keurig K-Supreme and K-Supreme Plus

This step-by-step guide will walk you through the process, ensuring your coffee tastes its best every time.

Step 1: Preparing Your Brewer

Start by emptying and cleaning your Keurig water reservoir. Make sure to remove any used K-Cup from the last brewing. 

If your machine has a charcoal filter, remove it before proceeding. 

Finally, place your large ceramic mug on the drip tray to collect the dispensed solution.

Step 2: Adding the Descaling Solution

Open the top cover of your water tank and pour in the solution. It’s essential that this solution is diluted with fresh water. A 1:1 ratio works best; you can use the empty solution bottle to measure out an exact amount of water for dilution.

Exercise caution if you decide to use vinegar or a different descaling solution. Too many of these alternatives could potentially harm your machine.

Step 3: Activating the Descaling Mode

Ensure your brewer is plugged in but turned off. Press and hold both the 8oz and 12oz buttons simultaneously for about 3-6 seconds. 

Once a light starts flashing, press the BREW button. Now, your machine is ready to start the descaling process.

Step 4: Running the Descaling Brew Cycles

At this stage, the descaling solution will start brewing into your ceramic mug. Once the brewing cycle finishes, carefully dispose of the hot solution in your mug.

 Now, repeat the brewing process. Press the BREW button again, allowing more solutions to cycle through the machine and into the mug.

Keep repeating this until the “ADD WATER” light comes on. This light signals that the reservoir is almost empty and needs refilling. 

During this process, empty the mug every 12oz to prevent it from overflowing.

Step 5: Rinse and Repeat

Empty any remaining descaling solution from the water reservoir into your sink. Refill the reservoir to the MAX line with fresh water. Press the BREW button to run a clean water cycle.

Remember to empty the mug each time, repeating the cycle until the “ADD WATER” light comes on again, indicating the need to refill the reservoir.

Step 6: Final Rinsing

Keep repeating Step 5 until the “DESCALE NOW” message no longer appears on your machine. 

This disappearance means your machine has successfully exited the “Descale Mode” and is now ready for regular use.

Tips and Tricks for Best Results:

  • Depending on your water’s hardness and the frequency of use, it’s recommended to descale your Keurig K Supreme every 3-6 months.
  • Always use a large ceramic mug for collecting the dispensed solution during the descaling process.
  • Run several freshwater brew cycles after descaling to ensure all solution residues are rinsed away.
  • Regular maintenance and cleaning will provide you with the best-tasting coffee and extend the lifespan of your Keurig.

Final Thoughts

Descaling your Keurig K Supreme and Supreme Plus is a simple yet vital task. It safeguards your machine’s lifespan and ensures a great-tasting coffee each time. With our comprehensive guide and handy tips, you’re ready to keep your machine at its best.

Act now and maintain your Keurig’s peak performance. Explore our other articles for more essential Keurig care tips.


How Often Should I Descale My Keurig?

Like clockwork, your Keurig needs its own spa day every 3 to 6 months. Yes, descaling is the coffee machine equivalent of a deep tissue massage. It all depends on the quality of your water; hard water users may need to pamper their Keurigs more frequently. It’s like your Keurig’s very own beauty regime to keep delivering those beautiful brews.

Can I use Vinegar to Descale my Keurig?

Vinegar, the undercover superhero of household cleaning, can come to the rescue when you’re out of a descaling solution. It can help decalcify your Keurig! However, remember to rinse your machine afterward to avoid a vinegary coffee thoroughly – that’s one flavor twist we don’t recommend!

Is it okay to Drink the First Cup of Coffee After Descaling?

After descaling, your Keurig is like a phoenix rising from the ashes, ready to serve you a fresh brew. But hold your horses! It’s best to run a couple of cleansing brew cycles with just water before you dive into drinking your post-descaling coffee. You want to savor those rich coffee notes, not the remnants of the descaling solution.

Why is Descaling your Keurig Regularly so Important?

Think of descaling as your coffee machine’s annual health check-up. Regular descaling keeps those nasty mineral deposits in check, ensuring your brew isn’t compromised. It’s about extending the lifespan of your Keurig and keeping the flavor of your coffee uncompromised. Because, let’s face it, no one wants a subpar cup of Joe.

I Descaled my Keurig Brewer, but Now it will not turn on. What now?

Don’t panic! First, make sure it’s not the case of the missing power cord or the switch not being turned on. If your Keurig still isn’t powering up, try unplugging and plugging it back in after a minute. Still no luck? It might be time to call in the experts. Reach out to Keurig customer service – they’re like the coffee machine doctors, ready to diagnose and treat your brewer’s woes.

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Viky Tiagué is a coffee enthusiast and freelance writer with a passion for sharing his love of coffee.

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