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The Chemex

The Chemex Coffeemaker is an hourglass-shaped pour-over style glass coffeemaker invented by Peter Schlumbohm in 1941. It is distinguished by its wooden collar which allows the user to handle the device even when it is full of hot liquid.

In 1958, designers at the Illinois Institute of Technology called the Chemex Coffeemaker "one of the best-designed products of modern times". Its design is so renowned, it is included in the collection at the Museum of Modern Art in New York City.

 

  SIZE   COFFEE   WATER   TIME
  12 oz   24 g   390 g   4 min
  16 oz   33 g   520 g   5 min
  24 oz   49 g   780 g   6 min

 

 

WHAT YOU'LL NEED

  • Kitchen scale that reads grams
  • Coffee Grinder, preferably of the burr variety
  • Kettle, preferably with a gooseneck
  • Timer
  • Chemex
  • Chemex Filter
  • Great Coffee 

STEP 1

Put the kettle on to boil. The water should be between 195 and 205 degrees Fahrenheit. You can use a thermometer or wait approximately 30 seconds after boil.

Step 2

 

Weigh out your beans according to the chart above, but don't grind them yet.

STEP 3

Place filter into Chemex with the 3-layered side facing the spout

Step 4

Rinse filter thoroughly with hot water. This removes any papery taste from the filter as well as pre-heats your device. Empty the water from the Chemex, resisting the urge to remove the filter. This can be done most easily by pouring from the back side of your Chemex.

Step 5

Place emptied Chemex onto scale and tare weight out so it reads zero

Step 6

 

Now it’s time to grind your coffee. The grinds should be about the size of coarse sea salt. Add it to the filter giving a little shake to level. Make sure your weight is correct and tare the scale again.

STEp 7

Start your timer and bloom the coffee. To do this you will begin with twice the amount of water as coffee (e.g. 32 grams coffee to 64 grams water). You'll want to evenly saturate the coffee, so begin pouring slowly in the center and slowly spiral outwards. Do not go so far as to pour water on the filter.

STEP 8

 

Around the 1 minute mark on your timer begin adding the rest of your water. Again you’ll begin in the center and slowly spiral out until you’ve filled it about an inch below the rim of the device.

STEP 9

Continue adding your remaining water in pulses to keep the water level even with your initial pour line. Do this until you’ve reached the desired weight.

Step 10

Once the coffee slows to a drip every few seconds discard the filter.

STEP 11

Give your Chemex a swirl, pour and enjoy!

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