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QuickSips: Your basic coffee knowledge

Chemex Kaffeezubereitung mit einem Fellow Stagg in Chrom

Find out in our QuickSip why your coffee tastes sour and how you can solve the problem.

Why does my filter coffee taste too sour?

The filter coffee is too sour because the grind is too coarse.

A grind that is too coarse causes the water to pass through the coffee grounds too quickly, resulting in insufficient extraction. This can cause the coffee to taste sour because not enough flavors and compounds are extracted to create a balanced taste.

If the extraction time is too short, the coffee may be too acidic.

An extraction time that is too short means that the water does not stay in contact with the coffee grounds long enough to extract all the desired flavors and compounds. This can result in the coffee being under-extracted and therefore tasting sour. An extraction time that is too short can be attributed to things like an incorrect grind size, too little coffee grounds in the filter, or insufficient wetting of the coffee grounds with water.

Because the water is too cold, the filter coffee can taste too sour.

The water that is not hot enough can also result in insufficient extraction. The ideal temperature for coffee extraction is usually between 92 and 96 degrees Celsius. Water that is too cold can cause the coffee to taste sour and may not extract the desired flavors.

If the water is too acidic, it can affect the result.

Water with a low pH can affect the taste of the coffee. Water that is too acidic can make the coffee more acidic and affect the flavors. It is recommended to use water with a neutral pH for best results.