Coffee Preparation; Cleaning And Care - WMF Bueno Gebrauchsanweisung

Start-up
Prior to the first use and/or after the appliance has not be operated for an extended period of time,
carry out 2 or 3 boiling processes with fresh water, without adding any coffee powder. To do this, fill
the tank (4) up to the 8-cup mark, as otherwise the jug (3) can overflow. After each brewing cycle,
turn the coffee machine off by pressing the Start/Stop button (6) and leave the appliance to cool
down for 5 minutes before you fill the tank (4) again with fresh water up to the 8-cup mark.

Coffee preparation

Open the water tank (4). To do so, swing open the lid (1) 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,
approximately 5-7 g of medium-fine ground coffee is estimated per cup. If it is ground too finely, the
filter (2) may overflow.
Close the lid (1). There is an audible click as it locks into place.
Insert the mains plug into the socket and push the Start / Stop button (6). This button lights up and
the preparation process 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 (3). After removing the jug (3), 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 process is complete, the keep-warm function activates
automatically and the Start/Stop button (6) remains illuminated. 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 (3) and vacuum jug (3) are cleaned under running water.
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
significantly longer brewing times or increased noise.
The following data are guide values that refer to a daily use in the household.
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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.
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