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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.

12 oz24 g390 g4 min
16 oz33 g520 g5 min
24 oz49 g780 g6min
chemex, scale, kettle, timer, filter, coffee


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

kettle ready to boil

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.

kitchen scale

Step 2

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

filter into chemex

Step 3

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

hot water rinse chemex filter

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.

emptied chemex onto scale to tare weight

Step 5

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


grind and weigh coffee in chemex filter

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.

bloom coffee in chemex filter

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.

pour water into coffee in chemex 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.

add rest of water to coffee in chemex filter

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.

let coffee slow to a drip in chemex

Step 10

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

enjoy chemex coffee

Step 11

Give your Chemex a swirl, pour and enjoy!

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