Jura IMPRESSA C9 Manual Manual page 66

 CLARIS plus filter cartridge – Water for perfect coffee

We recommend that you prepare about half a litre of water through
the machine before starting to make coffee again. The water could
be discoloured, but this is not harmful to your health.
Pictures on the next few pages:
Water – always pleasant and freshly filtered.
1
CLARIS plus filter cartridges do not require any accessories and do not

take up any extra space. They can be inserted directly into the water tank.
Water for perfect coffee specialities.
 
The professional up-flow principle: Only the precise amount of water

required for a given beverage is drawn in, and this is filtered directly before
use.
Stainless steel pipes in the heater element: With CLARIS plus (left) you

can omit the time-consuming descaling operation (right).
The following substances are filtered out through the interaction with

organic materials: calcium (Ca), chlorine (Cl), lead (Pb), copper (Cu),
aluminium (Al).