Much like the
Chemex coffeemaker, the
vacuum-brew method relies
on chemistry-inspired gear
for a better cup. However, the
vacuum-brew method steps it
up a notch by adding a bunsen
burner beneath two connected
flasks.
Heating the water causes
it to bubble up from the bottom
chamber to the top, where it
mixes with the coffee grounds.
As the liquid cools, a vacuum is
formed, pulling the brewed coffee
back down into the bottom
chamber while leaving the
grounds behind.
It’s a little more
involved than most coffee-making
methods, but for the loved one
that loves to experiment with
his morning cup, a vacuum coffee
maker is a
great gift.