Description
A dual-chamber vacuum brewing system that uses vapor pressure and vacuum physics to extract coffee.
Technical
Water vapor pressure forces heated water into an upper chamber containing coffee grounds, where immersion occurs (90-95°C). Subsequent cooling creates a vacuum that draws brewed coffee through a filter back to the lower chamber, separating grounds via both immersion time and precise filtration.
Culinary Significance
Produces exceptionally clean coffee with balanced acidity and aromatic clarity, showcasing delicate flavor notes often masked in other methods.
Science
Primary Reaction
Vapor pressure differential extraction
Parameters
Temperature
92°C optimal
85°C to 98°C range
Time
4 minutes 30 seconds
3 minutes – 6 minutes
Equipment
Heat-resistant borosilicate glass chambersCloth/metal hybrid filter (20-40 micron pores)Alcohol burner or electric heater