A dishwasher’s Eco programme often takes longer than an automatic or quick cycle. That does not necessarily mean it uses more energy. The EU energy label is built around the Eco programme: electricity per 100 cycles, water per cycle, programme duration, capacity and noise are all measured on this common basis.
The extra time can allow a model to work with lower water temperatures and gentler heating. The label is therefore not a speed ranking; it is a like-for-like comparison. Read four practical figures alongside the letter class and relate them to your own kitchen.
1. kWh per 100 cycles is not annual consumption
The figure beside the lightning symbol is the electricity used by 100 Eco cycles under standardised test conditions. Divide it by 100 for an estimated figure per cycle. For a personal annual estimate, multiply that result by the number of cycles you realistically run in a year.
Compare appliances of similar size and capacity. A slim machine and a full-width model designed for more place settings perform different jobs. A stronger class letter is not useful if an unsuitable capacity means the machine is regularly run half empty.
2. The litre figure applies to one Eco cycle
The tap symbol gives water consumption in litres per Eco cycle. It is not a daily or annual number. Real use can vary with operating habits and water hardness.
Read litres together with rated capacity. Under the EU definition, a place setting is one person’s tableware; rated capacity covers the stated number of place settings together with the appropriate serving pieces when loaded according to the supplier’s instructions. This makes the number useful for comparison, but it does not tell you whether your frying pan, oversized plates or tall glasses will fit comfortably.
3. A long programme is not a fault by itself
The label states the estimated Eco duration in hours and minutes. EU testing uses this same programme to measure energy, water, cleaning performance and drying performance. A lengthy Eco cycle should not automatically be treated as wasteful or ineffective.
The practical question is whether it suits your routine. If you start the dishwasher at night and unload it in the morning, duration may matter little. If dishes must be reused quickly several times a day, inspect the other programmes in the manual—but remember that their consumption is not the Eco figure printed on the label.
4. Rack design is the hidden half of capacity
Place settings are only a starting point. Check whether the upper rack can be adjusted while loaded, whether tines fold down, whether tall glasses fit and whether serving dishes still have space. A separate cutlery drawer can improve organisation but reduce vertical room in the upper rack; a cutlery basket takes space from the lower rack instead.
For a built-in model, measure the niche, verify furniture-door mounting and door swing, and locate the water, drain and electrical connections. The energy label does not replace an installation drawing.
5. In open-plan rooms, read noise class as well as dB
The label gives airborne acoustic noise during the Eco programme in dB(A) and an A–D class. EU thresholds are:
- A: below 39 dB;
- B: from 39 dB to below 45 dB;
- C: from 45 dB to below 51 dB;
- D: 51 dB or more.
The decibel scale is not linear, so a small numerical difference is not a simple percentage. In an open kitchen and living room, during evening use or in a compact apartment, the exact value and class can become independent buying criteria. The label remains a standardised comparison; cabinetry, flooring and installation can change perceived vibration and sound.
6. Match the exact model behind the QR code
The QR code opens the model’s public entry in the EU EPREL product database. Match the identifier on the shop display, online listing, packaging and EPREL. Similar variants within one family can differ in efficiency, noise, capacity and programme duration.
EPREL is useful for checking official product information, but rack usability, door mechanics and the installation drawing still require a separate look.
7. Full loads matter in everyday use
European Commission consumer guidance recommends using the Eco programme with a full but not overloaded machine. Dishes do not need pre-rinsing under running water; remove large food remnants and follow the loading instructions. Correct detergent dosing, regenerating salt and rinse aid where required, together with filter and spray-arm maintenance, also belong to efficient operation.
Seven-step buying checklist
- Measure the niche, door swing and connections.
- Choose a place-setting capacity that fits the household.
- Compare kWh/100 cycles between machines of similar capacity.
- Read litres/cycle together with Eco duration.
- In open-plan rooms, check both dB and the A–D noise class.
- Picture your own large cookware inside the racks.
- Scan the QR code and match the exact model in EPREL.
The best dishwasher does not necessarily have the shortest programme. It is the model whose capacity, racks, Eco consumption, water use and noise all fit the kitchen and its daily rhythm.
European Commission · Dishwashers
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