Owen PalmerBy Owen Palmer

Updated November 2026

Learning how to clean a Breville espresso machine comes down to three habits: rinse and wipe after every use, clear the group head and portafilter regularly, and descale on a schedule. Follow those and your shots will taste cleaner, your steam wand will stay clear, and the internal parts will last longer. The steps below cover the routine most owners need, plus the descaling process Breville models rely on.

Daily Cleaning After Each Use

Most of the buildup that ruins flavor happens within a day. Coffee oils and fine grounds cling to the portafilter basket, shower screen and group head, and they turn rancid quickly. A short routine after every session prevents that.

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  1. Turn the machine off and let the group head cool slightly.
  2. Remove the portafilter, knock out the puck, and rinse the basket and portafilter under warm water.
  3. Run a brief water flush through the group head without the portafilter attached to clear loose grounds.
  4. Wipe the drip tray, grate and the outside of the machine with a damp microfiber cloth.
  5. After steaming milk, purge the steam wand and wipe it with a damp cloth while it is still warm. Do not let milk dry on the tip.

Weekly Deep Cleaning

Once a week, give the parts that touch coffee a more thorough cleaning. Use a dedicated espresso machine cleaning tablet or an espresso machine backflush detergent, not dish soap, which can leave residue that affects taste.

  • Insert a blind filter (a basket with no holes) into the portafilter, add the cleaning powder or tablet, and lock it into the group head.
  • Run several short cycles, pausing between them, then rinse by running the machine with only the blind filter and no powder.
  • Soak the portafilter baskets in warm water with a little detergent for about 15 minutes, then scrub with a soft brush and rinse well.
  • Check the shower screen for coffee residue and brush it gently with a soft brush.

Descaling the Machine

Scale builds up from minerals in water and slows heating and water flow over time. Breville’s manuals specify descaling with the manufacturer’s descaling solution or a citric-acid based descaler approved for espresso machines, and they recommend a schedule based on how hard your water is. Check your model’s manual for the exact procedure, since menus and cycle names differ between models.

  1. Empty the water tank and remove the filter, if your model uses one.
  2. Fill the tank with descaling solution mixed to the strength the manual specifies.
  3. Start the descale cycle from the control panel and wait for it to finish, emptying the drip tray as prompted.
  4. Rinse the tank thoroughly, refill with fresh water and run several full water cycles to clear any remaining solution.

Cleaning the Steam Wand and Other Parts

Milk residue is the usual cause of sour-tasting drinks and a clogged wand. After each steaming session, purge the wand briefly, then wipe it. Once a week, remove the tip if your model allows and soak it in warm water. Use a fine pin or the tip of a toothpick to clear any holes, but avoid forcing anything that could damage the openings.

Common Mistakes

  • Using dish soap in the group head, which can leave a taste in later shots.
  • Skipping the post-use rinse and letting grounds harden in the basket.
  • Waiting for the machine to show a warning before descaling, which can mean scale is already well established.
  • Leaving milk on the steam wand until it dries into a crust.
  • Reinserting a damp portafilter, which encourages mold and stale odors.
  • Espresso machine cleaning tablets: These are made for backflushing and help dissolve coffee oils in the group head. View on Amazon
  • Blind filter basket: A solid basket that lets you backflush the group head with cleaning powder. View on Amazon
  • Soft cleaning brush set: Useful for the shower screen, steam wand and portafilter baskets without scratching surfaces. View on Amazon

FAQ

How often should I clean my Breville espresso machine?

Rinse and wipe the portafilter, steam wand and drip tray after every use. Backflush with cleaning powder about once a week if you brew daily, and descale according to the schedule in your manual.

Can I use vinegar to descale a Breville?

Breville manuals generally recommend their own descaling solution or a citric-acid based descaler, so check your model’s instructions before using anything else. Vinegar can leave a strong odor and taste that is hard to rinse out.

Why does my espresso taste bitter after cleaning?

Usually leftover cleaning residue or stale coffee oil is the cause. Run several full water cycles to flush the system, and confirm the portafilter and basket are fully rinsed before brewing again.

Conclusion

A quick rinse after each use, a weekly backflush and scheduled descaling will keep most Breville models performing well. Keep your manual nearby, because cycle names and recommended descaling solutions vary by model. If the machine shows persistent faults after cleaning, contact Breville support or a qualified repair technician.

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Owen Palmer

About Owen Palmer

Owen Palmer is part of our editorial team and reviews and edits our coffee machines guides, checking product details against manufacturer specifications and owner feedback.