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Chemex Brew Guide

The Chemex Coffeemaker is a manual pour-over style glass coffeemaker, invented by Peter Schlumbohm in 1941. It consists of an hourglass-shaped glass flask with a conical funnel-like neck and proprietary filters, made of bonded paper, that are thicker than the standard paper filters used for a drip coffeemaker. The thicker paper of the Chemex filters removes most of the coffee oils and makes coffee that is much "cleaner" than coffee brewed in other coffee-making systems.

Grind Size: Drip – Medium

Dose: 30 grams

Water: 500 grams 205F


What You Will Need:

  • 30g Three Hats Coffee
  • Burr Grinder
  • Gram Scale
  • Timer
  • Filtered Water
  • Gooseneck Kettle
  • 6 cup Chemex
  • Filter

Brewing Instructions:

  • Bring 500 grams filtered water to 205ºF in kettle.
  • Place filter into Chemex with three-ply side towards the spout. Rinse with hot water. Discard wastewater.
  • Grind 30g of coffee on a medium setting on burr grinder. Place coffee in filter. Shake Chemex gently to create a level bed of coffee.
  • Place Chemex on gram scale. Tare to zero.
  • Start Timer. Evenly saturate the ground coffee with 100g water.
  • At 1:00, in concentric circles, pour hot water until scale reads 300g.
  • At 2:30, in concentric circles, pour hot water until scale reads 480g.
  • Once filter is drained, serve brewed coffee.

BREW TIP: If you aren't hitting your brew times, you'll need to adjust your grind size. Coarser = faster brewing. Finer = slower brewing.