Both vitreous make but optically real her much.
This part works like this:
At the bottom of the glass jug filled to the water (markings 6 to 8 cups are marked out). Are then added to the upper body a nozzle a, which is then pulled in the pipe down on voltage (is very simple). Then you walk in the coffee powder. I've taken all the beans (J. Hornig - Cream Diamonds), I paint with Gastroback 42639 on the coarsest level. A 7gramm spoon per cup of perceived (ie water to mark 6 cups 6 is ground coffee, which is enough for 2 large cups of coffee).
Then added to the upper body to the lower glass and pushes it to something so that the rubber plug seal properly.
So, then just leave on the stove and simmer.
The water is forced through the tube upward and then floats in the upper piston, the coffee liquor.
That leaves you simmer until about 1cm below water remains (I think that is no longer on the tube high). If you can boil the water completely, the lower pot could burst reads.
The whole process takes almost 6-8 minutes.
Then you take the coffee maker off the heat and by the resulting vacuum due to cooling of the coffee is drawn (with no coffee grounds) down. Ready is the coffee.
Incidentally, a tip: cold water fill. Taking boiling, immediately water rises without being held up. Therefore, it runs right back. I tasted the coffee rather slightly bitter and lax.
The cleaning will ensure a bit more complicated than, say, a coffee maker, but that it should be a value for good coffee. Cleaning goes like this: I leave to cool the coffee grounds, then it cant in the waste and scrape the rest at the edge with a spatula (works simply the best) from. The rest of you get easily rinsed. The pot is not the upper vitreous at least for me because of the height fits into the dishwasher.
Accessories are actually a cover for the top glass body, a cap for the lower pot and a pedestal for the upper glass body, thus can be kept.