Domakihub How to Clean a Milk Frother — and Keep It Fresh Every Day
A quick daily rinse plus a weekly deep clean is all it takes to protect your frother and your coffee.
Reviewed by Domakihub cleaning pros · 2026-06-23 · 4 min read
Whether you run a holiday rental in Crete, manage a boutique hotel in Thessaloniki, or simply enjoy a cappuccino at home, a milk frother is one of the hardest-working tools in the kitchen — and one of the easiest to neglect. Dried milk residue builds up fast, dulls frothing performance, and can become a hygiene issue in professional settings. The video above walks through the process visually; the steps below give you a reliable routine you can hand off to cleaning staff or follow yourself in under five minutes.
Why Milk Residue Is a Bigger Problem Than It Looks
Milk contains proteins and fats that begin to oxidise within hours of use. In a warm kitchen — especially in the Greek summer — bacteria can multiply rapidly inside a frother that is not cleaned after every session. Left unchecked, the residue bakes onto the whisk coil and jug walls, eventually affecting the taste of your foam and shortening the lifespan of the heating element.
This matters especially in rental and hospitality contexts, where multiple guests use the same appliance. A stained, smelly frother is one of the small details that ends up in a negative review.
What You Need Before You Start
You will need warm water, a drop of mild washing-up liquid, a soft cloth or sponge, and — for the weekly deep clean — white vinegar or citric acid powder (widely available in Greek supermarkets under the name κιτρικό οξύ). Avoid abrasive scrubbers, which scratch non-stick coatings and create microscopic grooves where milk can hide. Never submerge an electric frother base or a wand-style frother motor in water.
How to Clean Your Milk Frother — Step by Step
- 1
Rinse immediately after every use
As soon as you have poured the frothed milk, add a small amount of warm water to the jug (or dip the wand tip) and run the frother for five seconds. This loosens fresh milk proteins before they have any chance to dry, and it takes almost no time. In a hotel or rental, this single habit prevents 90 percent of the buildup problem.
- 2
Wash the jug or whisk with soapy water
Fill the jug to roughly one third with warm water and a single drop of washing-up liquid. Run the frother for ten seconds to create a light lather, then pour the soapy water away and rinse with clean water. For a wand-type frother, dip the whisk head in soapy water and run it for the same length of time, then rinse. Wipe the inside of a jug-style frother with a soft cloth to remove any remaining film — do not use the dishwasher unless the manufacturer explicitly says the jug is dishwasher-safe.
- 3
Clean the exterior and base with a damp cloth
Wipe down the outside of the unit and the power base with a cloth that is damp but not dripping. Pay attention to the area around the lip where milk can overflow and run down the side. Never spray cleaning products directly onto the unit, and never let water contact the electrical contacts at the bottom of the jug.
- 4
Run a weekly descaling and deodorising cycle
Once a week, fill the jug to the minimum mark with a solution of one teaspoon of white vinegar (or a half-teaspoon of citric acid) dissolved in water. Run the frother once, let the solution sit for ten minutes, then pour it away and rinse twice with clean water. This dissolves mineral scale from hard Greek tap water, removes any lingering odour, and keeps the heating disc performing efficiently.
- 5
Inspect and dry completely before storing
After cleaning, dry the whisk coil and jug thoroughly with a lint-free cloth and allow the unit to air-dry before putting on the lid or storing it inside a cupboard. Trapped moisture encourages mould. If the coil on a wand frother shows discolouration or distortion, it is inexpensive to replace — far cheaper than buying a new unit.
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FAQ
- Can I put my milk frother jug in the dishwasher?
- It depends on the model. Many stainless-steel jugs from brands such as Nespresso Aeroccino and Smeg are not dishwasher-safe because the high heat can damage the non-stick coating on the heating disc and the whisk spring. Check the manufacturer's manual first. If there is any doubt, wash by hand — it only takes thirty seconds and is always safe.
- How do I remove stubborn burnt milk from the bottom of the frother?
- Fill the jug with a solution of warm water and a teaspoon of baking soda (σόδα μαγειρέματος) and let it soak for twenty minutes. The mild alkaline action lifts burnt milk proteins without scratching the surface. If residue remains, repeat the soak rather than scrubbing — patience works better than pressure on a coated heating disc.
- How often should I replace the whisk coil on a wand-style frother?
- Most whisk coils last six to twelve months with daily use, but in a rental or hotel where the frother is used many times a day, inspect it monthly. Signs that it needs replacing include a noticeably weaker foam, the coil feeling loose or looking bent, or visible rust spots. Replacement coils are inexpensive and are sold in most kitchen shops and online.