Brew guide

Chemex brew guide

Brew enough for two or three with a very clean, bright finish. Our step-by-step Chemex recipe takes about four minutes.

Holding a Chemex full of freshly brewed coffee

The recipe

Coffee
30g
Water
500g
Ratio
About 1:17
Grind
Medium-coarse
Water temp
Just off the boil
Time
3:30 to 4:30

Grind to about the coarseness of sea salt.

You will need

  • Chemex and Chemex filter paper
  • Kettle, ideally with a gooseneck spout
  • Scales and a timer
  • Freshly ground coffee

Step by step

  1. Grind

    Weigh 30g of coffee and grind it to about the coarseness of sea salt.

    Weighing and grinding coffee beans
  2. Fit the filter

    Open the filter so one side has a single layer and the other has three. Put it in the Chemex with the three-layer side against the pour spout, so it doesn't block it.

    Placing a folded filter in the Chemex
  3. Rinse and warm

    Wet the whole filter with hot water to rinse it and warm the glass, then pour that water away through the spout.

    Rinsing the Chemex filter with hot water
  4. Add coffee and zero the scales

    Add the coffee and give the Chemex a gentle shake to level the bed. Put it on your scales and set them to zero.

    Ground coffee levelled in the Chemex filter
  5. Bloom 0:00

    Starting in the centre, gently pour 60g of water (twice the coffee), working outwards but avoiding the sides of the filter. Let it bloom for 45 to 55 seconds.

    Coffee blooming in the Chemex after the first pour
  6. Second pour 0:50

    Pour about 200g in a spiral from the centre out and back again, avoiding the paper. Let it drip until the level drops to about an inch above the bottom of the filter.

    Pouring water in a spiral over the coffee in the Chemex
  7. Third pour

    Repeat with another 200g. When it drops again, top up to 500g in total.

    Topping up the Chemex with the final pour
  8. Let it drain 3:30 to 4:30

    Let all the water run through. The whole brew should take 3½ to 4½ minutes. Too fast? Grind finer or pour more slowly. Too slow? Grind coarser or pour a little faster.

    The last of the coffee draining through the Chemex filter
  9. Serve

    Lift out and throw away the filter and grounds, give the Chemex a swirl and pour.

    Pouring Chemex coffee into a mug