Cremesso Coffee machine User Manual download pdf (Page 12)

Product Criteria Paper

heating time before dispensing coffee. It takes less time however than when heating up

from the cold state

Hard-Off, Soft-Off: A hard-off switch disconnects a machine from the mains, so that

power input is zero. With a soft-off switch a machine is switched off electronically and

usually keeps up a minimal power input for supplying the electronic circuit. In some

cases the type of switch cannot be identified easily, for instance if the machine is being

disconnected from the mains by a relay while it is switched on with a smooth-running

micro switch

One-Touch-Function: operates automatically at the touch of a button milk-based

coffee specialities such as Latte Macchiato, Cappuccino etc.

Rinse, Rinse function: Many coffee machines automatically dispense a small amount

of water after heating up, in order to clean and warm the dispensing canals. Possibly

this function can be switched on or off in the program menu. In some cases the rinse

function has to be confirmed by pushing a button after a request on the display

2.2.6 Energy Consumption

The most energy using function of coffee machines is the permanently keeping hot of

the water at 85°C to 90°C and strongly depends on the heating unit. Three types of

heating units are common in coffee machines: boilers, thermo-blocks and flow-type

heaters. The keeping warm function of a typical automatic /portioned coffee machine

(excluding coffee brewing) may consume up to 170 kWh per year, depending on user's

switching off practice. Further energy using functions are the production of a cup of

coffee, standby, pumps and electric motors. Measures that strongly enhance the

energy efficiency of coffee machines are the availability of an auto-power-down and a

short delay time, insulation of hot parts, reduction of the thermal capacity of the heating

unit; “energy saving mode”, reduced or zero standby consumption and low amount of

water to be heated for hygienic and quality purposes (see chapter 2.2.6). (Josephy, B.

et al. 2011).

2.3 Best Available Technology

On account of the high energy saving potentials, manufacturers have undergone

various efforts to increase the energy efficiency of coffee machines in the last years.

The key features that strongly enhance the energy efficiency of coffee machines thus

are auto-power-down, good insulation of hot parts, reduction of the thermal capacity of

the heating unit, “energy saving mode”, reduced or zero standby consumption and low

amount of water to be heated for hygienic and quality purposes.

The NESCAFÉ® Dolce Gusto®-System e.g offers capsules filled with 100% whole-milk powder

(www.dolce-gusto.com).

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Cremesso Coffee machine User Manual Page 12