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Updated: May 5, 2023

Welcome to a video sharing how to use a French Press - a very popular and classic coffee brewing tool.

The French Press is a simple yet effective coffee brewing method that has been around since the 19th century. It has become popular all over the world due to its ability to make a very distinct, full-bodied and flavorful coffee.

Let's see how iO Coffee uses the French Press to make a delicious cup of coffee.



  • French Press

  • Digital scales

  • Stirrer or Spoon

The components of a French Press coffee maker


  • Ratio 1:15

  • TDS of water is about 120ppm

  • Water temperature used: 93 degrees Celsius

  • Grind size: medium coarse



- Step 1: Heat water for coffee to 93°C. Then, preheat the French Press. Pull the plunger up (without removing it completely) and use the hot water to rinse the French Press. Then, remove the plunger completely and discard the hot water.

- Step 2: Grind 15g of coffee at medium coase grind size, then fill in the French Press.

- Step 4: Pour 30ml of hot water and gently stir 2-3 times with a stirrer or a spoon to start the blooming phase. After stirring is complete, press the timer on the digital scale and leave it for 30 seconds.

- Step 5: After 30 seconds, pour the remaining 195ml of hot water. After pouring the water, use the French Press lid to cover, but do not press down.

- Step 6: When the timer reaches 3 minutes, remove the lid, use a stirrer or spoon to stir the coffee and water inside the French Press again. Stir gently about 3 rounds.

- Step 7: After stirring, close the French Press lid. Use the plunger to press the coffee down, very gently and slowly, avoiding the coffee to reflux back upwards.

- Step 8: After pressing the plunger all the way down, pour the coffee to cups and enjoy.



Manually brewed coffee is often described as having a gentle aroma, bright acidity, sweet taste, smooth and long-lasting aftertaste. You can adjust the taste according to your preference by:

  • If the coffee is too acidic and lacks sweetness or tastes weak: it is usually due to coarse grind size/quick brew time, leading to the coffee not being fully extracted with its original flavor and acidity being more prominent than other flavors. You should adjust the grind size to be finer.

  • If the coffee is too bitter: adjust by changing to a coarser grind. In addition, if the bitterness is somewhat unpleasant, bitter like medicine, oily, or astringent, it is likely that the coffee beans you are using have been over-roasted or are of poor quality. You can switch to a more suitable supplier or purchase a lighter roasted coffee.

  • If you want a stronger coffee: grind the coffee finer or change the brew ratio. In other words, use less water to brew. Brew the coffee with 30ml of water, then pour in 165ml of water and you're done.

  • If you want a lighter coffee: you can actively adjust the grind size to be coarser. Or simply add about 15-20ml of hot water directly to the coffee after brewing.



So iO Coffee has completed a detailed article on how to brew coffee manually. Let's join iO Coffee to make a cup of manual coffee right away.

You can also watch a simple tutorial video on iO Coffee's YouTube channel below:

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