Descaling the steam wand on an espresso machine clears limescale and milk residue for better milk frothing.
Supplies Needed
Use white vinegar or citric acid powder, warm water, a cleaning needle or pin, damp cloth, and small brush. Mix a solution of 1 part vinegar to 2 parts water, or dissolve 1-2 teaspoons citric acid per cup of water. Wear gloves for safety.
Daily Quick Clean
After each use, purge steam for 5-10 seconds to flush residue. Wipe the wand with a damp cloth immediately while hot. This prevents buildup before descaling becomes necessary.
Preparation
Turn off and unplug the machine; let it cool. Unscrew the steam tip if possible—most models have a removable end. Soak the tip in hot soapy water or your descaling solution for 10-15 minutes.
Descaling Process
Submerge the wand tip in the vinegar or citric solution, or fill a milk pitcher with it and steam for 20-30 seconds. Let sit 15-30 minutes to dissolve scale inside the tube. Use the needle to poke through holes and clear clogs while soaking.
For deeper clean, remove the wand if detachable and soak fully in solution for 30-60 minutes. Rinse thoroughly under running water.
Rinsing and Testing
Purge steam into a pitcher of fresh water 2-3 times until no vinegar smell remains. Reattach the tip, wipe dry, and test with water—steam should flow steadily. Run a blank milk froth cycle to confirm.
Frequency and Tips
Descale the wand monthly or every 40-50 milk uses, more often with hard water common in Nairobi. Alternate citric acid with vinegar to avoid corrosion. Purge after every latte; never skip wiping.
If issues persist like weak steam, deeper clogs may need pro service—call 0101763173 at cookerepair.com, Kangari Hse, Luthuli Avenue, Nairobi.
