Thermodynamics at work! All of the water has been forced into the grounds above to finish brewing.

Not a bad cup of coffee.

#coffee #science

@CareLevelZero very cool! Am I wrong or that is just a Moka pot made out of glass with no safety valve?

@rastinza @CareLevelZero
It's a siphon. The brewing mechanism is a bit different. There's no restriction on flow up to the upper chamber. The filtering happens when the low pressure pushes the coffee back through the grinds into the lower chamber again.

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@jannem @CareLevelZero oh, so... A soxhlet extraction of coffee?

@rastinza @CareLevelZero
Seems similar, yes, but simpler. And it makes delicious coffee.

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