Coffeeglass (Update 1.3)
Based on the idea of a sandglass...

Solution

This coffee mashine looks small, but has enough room for
all technical equipment, (eg. the burnt gas filter & the water tank) because the
back of the mashine is very roomy.
Let's stop the time while the green beans get roasted, grinded and brewed!


My solution for the right dosage of coffee beans:
A measuring cup with two scales (water & beans)

(Music: "Rite of Passage" by Kevin MacLeod)

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