Coffee Preparation; Cleaning And Care - WMF Stelio Instrucciones De Uso

Coffee preparation

Open the water tank (4). To do so, swing open the lid (3) upward. Only pour cold water into the tank
(4). The water level indicator (5) is for the amount of fresh water that is needed to brew the desired
number of cups per 125 ml of coffee.
Open the filter (2) by swinging open the filter lid (1) upward. Place the paper filter of the 1 x 4 size
into the filter (2), but fold the stamped edge before doing so. The paper filter should not protrude over
the edge of the filter, which is why it should be pushed down slightly with your hand.
Fill with the required amount of ground coffee. Depending on personal taste preferences, approxi-
mately 5-7 g of medium-fine ground coffee is estimated per cup. If it is ground too finely, the filter
(2) may overflow.
Then close the filter lid (1). It will audibly click into place.
Insert the mains plug into the socket and push the Start / Stop button (6). This illuminates blue and
the preparation begins.
You can cancel the preparation at any time by pressing the Start / Stop button (6) again.
Wait a few minutes until all of the coffee has run into the jug (7). After removing the jug (7), a drip-
stop valve prevents coffee from dripping.
Keep-warm function
In order to keep the finished brewed coffee at a serving temperature, your device is equipped with
a keep-warm function. After the preparation is complete, the keep-warm function activates
automatically and the Start / Stop button (6) remains illuminated blue. The keep-warm time is 40
minutes. Then the device automatically switches off and the Start / Stop button (6) turns off.
You can deactivate the keep-warm function at any time by pressing the Start / Stop button (6).

Cleaning and care

Cleaning
Disconnect the mains plug and allow the appliance to cool down.
Do not immerse the device in water, but rather only wipe the outside with a damp cloth to which
some washing-up liquid has been added.
Do not use any harsh and abrasive cleaning agents.
The filter (2), glass jug (7) are cleaned under running water.
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Calcification
Calcium deposits lead to a longer brewing time and a lower quality of your coffee. In addition, calcium
deposits lead to energy losses and affect the service life of the device.
It switches off prematurely if the limescale layer is too thick. It is then only possible to remove with
great difficulty. You should therefore descale regularly, at the latest however in the event of signifi-
cantly longer brewing times or increased noise.
The following data are guide values that refer to a daily use in the household.
Hardness range Hardness Descaling intervals
1 soft 0 - 7° dH Every 6 months
2 medium >7- 14° dH Every 3 months
3 hard >14 - 21° dH Every 6 weeks
4 very hard >21° dH Monthly
1° dH corresponds to approximately 0.18 mmol/l Ca and Mg ions
You can inquire at your local water company or government to find out the hardness range in your
neighbourhood.
Descaling
Please descale your appliance regularly using a high-quality commercial descaling agent. Follow the
manufacturer's instructions, particularly with regard to the subsequent cleaning with clear water,
which is essential! Suitable descaling agents contain inhibitors that protect appliances against damage
to seals and surfaces, do not cause additional deposits and have no taste. Do not use descaling agents
that are unsuitable for your appliance (such as substances based purely on vinegar or citric acid). Our
warranty does not cover damage caused by using unsuitable descaling agents or failure to follow the
descaling instructions. Please keep descaling agents out of reach of children and make sure you do not
inhale any of the steam given off during descaling.
▪ Insert the paper filter and place the jug (7) in the machine. Any more substantial amounts of
limescale residue collect on the filter paper and thus prevent the spout becoming clogged.
▪ After the descaling solution has passed through, empty the jug (7), switch off the device and allow
to cool for 5 minutes.
Important: Then to rinse, fill the tank (4) to the 8-cup mark (version with teapot) or to the 6-cup
mark (version with vacuum jug) with fresh tap water and allow this to run through the machine. Then
rinse the filter (2) and jug (7) under running water.
Note: In the event of heavy calcification, repeat the descaling process.
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