Percolation with thick filter / Preparation / Adjustments

Chemex

Chemex combines dripper and carafe in one piece. Its thick filter retains more oils and sediment, producing a clean, light and elegant cup.

Chemex with thick filter during filter coffee preparation
Base dose

30 g for 500 g water

Ratio

1:15 to 1:17

Time

4:00-5:30

Grind

Medium-coarse

Extraction principle

How this method works

The Chemex filter offers more resistance than other papers. That is why the grind is usually a little coarser and times are longer.

It works very well for medium volume, but needs patience: if you move too many fines to the bottom, flow can stall.

Applicable gear

Buying guides for this method

If you need to choose gear, these catalog tools fit the recipe. Each link takes you directly to its buying recommendations.

Process

Step-by-step preparation

01

Place filter

Put the three-layer side toward the spout. Rinse very well to remove paper taste.

02

Prepare the bed

Add ground coffee and level. Use a coarser grind than V60.

03

Bloom

Wet all the coffee with 2-3 times its weight in water and wait 35-45 seconds.

04

Pour slowly

Add water in broad pulses, keeping an even bed.

05

Avoid choking

Do not stir aggressively; the thick filter already slows flow.

06

Serve

Remove the filter, swirl the carafe and serve before it loses temperature.

Tips

How to improve preparation

Rinse thoroughly

Thick filters can leave taste if poorly rinsed.

Think in volume

Chemex shines when brewing several clear cups.

Grind coarser

If it takes too long, do not compensate only by pouring harder.

Choose clean coffees

Floral or citrusy washed coffees often work especially well.

Diagnosis

Common mistakes

Excessive time

Use coarser grind and less agitation.

Low intensity

Use a more concentrated ratio, such as 1:15.

Paper taste

Rinse with more hot water.

Cold beverage

Preheat Chemex and cups well.

Compare methods

Back to the general guide

Use this recipe as a starting point. Then compare other methods to decide whether you want more body, more clarity, more intensity or easier daily brewing.

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