Both should belong to a water filter of the past and because of the many good reviews, I then decided to go for a trial with the BWT table water filter 2.7 liters. Incidentally, this is also recommended by professional espresso shops for use with espresso coffee machines, they are also very susceptible to lime.
Commissioning is well described and done with a few simple steps. Filter insert for 15 minutes in water, put together system and discard the first pot after the filter run. Done.
Disturbing the spring to the flap of the water inlet to close automatically was not hooked in the delivered state. With a seasoned man's hand, this takes about 15 minutes.
What has then something startled me and what is also only in the manual (but not previously in the product description) learns - to counteract the contamination of the filter, the granulate is mixed with silver ions, which end up in low doses in the filtered water. Similar to aluminum a direct adverse effect on health is not yet occupied but a bad feeling still remains.
Num for the practical test.
Two identical glasses, one filled with pure tap water and once with the filtered. Assessed visually saw the filtered perhaps a touch of clear, with the comparative product images on the manufacturer it had not much in common. There one sees murky tea and coffee with no crema, the unfiltered reference water there must have come from a rain barrel.
The first sip (unfiltered) mains water, largely tasteless just like water tastes so. In the second experiment now the filtered water, this had now a distinct flavor which I unfortunately can not place. I assume that this is the advertised magnesium additive. Here, however, the ghosts like a divorce, I prefer drinking water without flavor (and if it does a splash Zirone or ginger) and feel the filtered water, at least to drink, not an improvement. In coffee / tea flavor but does not stand out. However, just as little as an optical improvement in terms of coffee crema or turbidity of tea.
My conclusion for BWT table water filter:
To protect our coffee machine from calcium deposits, I will place the filter there on. For your daily needs or as a flavor improvement of drinking water I do not feel the device, however, quite the contrary. When chlorinated water or tap water with a strong aftertaste, this may of course be different, there may be the filters make sense.
It also interferes with something that after the filtering materials (silver ions) are in the water that have no business being there actually.
Schade is also the amount specified with 2.7 liters. A filtered filling is about a good liter as the 2.7-liter to the total charge (filtered + unfiltered) relate.
