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Step-by-step guide to making a Chemex at home

Making coffee with Chemex at home may seem complicated at first, but once you become familiar with the process, you will see that it is quite simple and you will get a delicious coffee.

Here is a step-by-step guide to making a Chemex at home:

Ingredients and tools:

  • Freshly ground coffee (medium-coarse grind)
  • Chemex paper filter
  • Hot water (approx. 90-95°C)
  • Scale (optional but useful)
  • Coffee grinder (for grinding whole beans)
  • Kettle or kettle
  • Chemex


Heat the water: Boil enough fresh water and then let it stand for about 30 seconds to bring it to the ideal temperature of 90-95°C. This is important to extract the flavours properly without burning the coffee.

Weigh and grind the coffee: Measure the amount of coffee you want to use. The typical ratio is around 1:15 to 1:17 coffee to water, depending on your strength preference. For example, for 30 grams of coffee, you will need about 450-510 ml of water. Grind the coffee beans to a medium size, similar to table salt.

Prepare the paper filter: Open the Chemex paper filter and place it on top of the Chemex, making sure that the three-layer part of the filter is in the direction of the Chemex spout. Rinse the filter with hot water to remove any papery taste and heat the Chemex (throw away the excess water once it has been enhanced).

Add the ground coffee: Pour the ground coffee into the prepared filter in the Chemex. Spread the ground coffee evenly to ensure an even extraction.

Create the pre-infusion: Pour a small amount of hot water (about twice the weight of the ground coffee) over the coffee in circular motions, covering the entire coffee bed. This will allow the coffee to "bloom", releasing carbon dioxide and preparing the oils for optimal extraction. Allow to steep for 30-45 seconds.

Pour the remaining water: Continue pouring the hot water over the coffee in slow, circular motions, avoiding pouring directly over the edges of the filter to avoid rapid water flow. Pour gradually until the desired total amount of water is reached.

Let the coffee filter through: Once you have poured in all the water, wait for the coffee to filter completely through the filter. This may take several minutes, but the result will be a clean, clear coffee at the bottom of the Chemex.

Serve and enjoy: Once the coffee has fully filtered, carefully remove the filter and discard the coffee grounds. Serve the coffee in pre-warmed cups and enjoy the taste and aroma.

And that's it! You are now ready to brew Chemex coffee at home like a pro. Once you get used to the process, you can adjust the coffee to water ratio and grind to your taste preferences.


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