How To Descale A Breville Precision Brewer? (Full Guide!)

This guide is for the Breville Precision Brewer and the Breville Precision Brewer Thermal, providing a step-by-step approach to the descaling process.

Dive in to keep your brewer at its best.

How To Descale A Breville Precision Brewer?

Here is in short how to descale the Breville Precision Brewer:

  1. Empty the carafe and remove the coffee grounds from the basket.
  2. Pour the descaling solution into the water reservoir. Place the coffee basket and empty carafe back in position.
  3. Turn on the machine and hold down the “SELECT” button for 3 seconds to start descaling.
  4. After descaling, discard the solution from the carafe and rinse the basket and carafe with clean water.
  5. Unscrew and rinse the showerhead and ring, then reassemble.
  6. Refill the water basket with clean water and run the “GOLD” cycle (or alternative) without coffee to rinse the machine internally.

Now let’s get into some more detail below!

Breville precision brewer descaling guide

Things To Know Before Descaling Your Breville Precision Brewer

Your Breville Precision Brewer shows a ‘descale’ message that lets you know when it is time for descaling. However, you don’t always have to wait for this message to come on.

A good rule of thumb is to descale your machine at least every three months, especially if you’re using unfiltered hard water.

You might need to perform descaling more frequently if, for example, you notice that the coffee starts to have a strange taste, or if your brewed coffee is getting a little colder than usual. Regular maintenance is key to ensuring that your Breville Precision Brewer continues to make the perfect cup of coffee.

Prepare For The Descaling Process

Before you start descaling, you will need a descaling solution. You can find an affordable option on Amazon.

First, empty the carafe and remove any coffee grounds from the coffee basket. Next, pour the descaling solution into the Precision Brewers water reservoir.

Finally, place the coffee basket and the empty carafe back into their positions, with the carafe situated under the drip stop outlet.

Run The Descaling Cycle

Turn on the Breville Precision Brewer machine. Then, hold down the “SELECT” button on your machine for 3 seconds.

The machine will start the descaling process. Wait until the process is complete. This could take some time as the machine cycles the descaling solution through its components.

Run The Rinse Cycle

After completing the descaling process, start by discarding the descaling solution from the carafe. Next, give both the coffee basket and the carafe a thorough rinse with fresh, clean water.

Unscrew the showerhead ring from the machine with your hand. Rinse these parts with fresh water to make sure all the descaling solution is removed. Once they are clean, reassemble the showerhead and the showerhead ring back into their original positions on the machine.

Now, refill the water basket with fresh, clean water, do not use a descaling solution for this step. Finally, select the “GOLD” cycle on your machine, or an alternative cycle if your model doesn’t have a “GOLD” option.

Run this cycle without any coffee in the basket, as this step is designed to rinse the internal components of the machine one final time with fresh water.

Can You Descale A Breville Precision Brewer With Vinegar?

Using vinegar to descale your coffee machine can be a cost-effective alternative to relatively expensive descaling solutions. Generally speaking, vinegar performs as well as a dedicated descaling solution.

With that being said, using vinegar for descaling your Precision brewer is fine. You can use a mixture of 50/50 vinegar and water.

Just ensure that you perform additional rinses with water afterward, as vinegar can leave a more lingering smell and taste compared to a descaling solution.

What Happens If You Do Not Descale Your Breville Precision Brewer?

Failing to regularly clean your Breville Precision Brewer can lead to several undesirable outcomes.

  • With time, mineral deposits from water may accumulate in the machine, which can alter the flavor of your coffee, resulting in a metallic or bitter taste.
  • This scale buildup can also obstruct the water flow through the machine, forcing it to work harder and potentially increasing the brewing time.
  • A long-term accumulation of minerals and debris can cause wear and tear on the internal components of the Breville Precision Brewer, which may lead to malfunctions and your machine making a loud noise.
  • Residual water and coffee remnants left in the brewer can create a hospitable environment for mold and bacteria. These can develop within the water reservoir and the coffee maker itself, posing a health risk if consumed.

To enjoy the best possible coffee and to maintain your machine in optimal condition, it is vital to clean and descale your Breville Precision Brewer on a regular basis. Avoid allowing neglect to compromise your coffee experience or shorten your coffee maker’s life.


Regular descaling is essential for maintaining the performance and longevity of your Breville Precision Brewer or Precision Brewer Thermal.

This guide has walked you through the simple steps of emptying, cleaning, descaling, and rinsing your machine to ensure it continues to produce the perfect cup of coffee.

Don’t wait for a ‘descale’ message, make this process a regular part of your routine, and your brewer will thank you with exceptional coffee, cup after cup.

Thanks for reading!