FRENCH PRESS COFFEE MAKER
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Why is Grind Size Important?
There are three main factors to consider when choosing the right grind size for your coffee:
surface area,
extraction rate and contact time.
The ner the grind, the larger the surface area.
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The larger the surface area, the higher the extraction rate.
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The higher the extraction rate, the less contact time.
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If you use a brew method with a short contact time, the grind should be ner. In an immersion brewer like
a French press, the grind should be coarser than other most brew methods because the coffee is steeped in
hot water and contact time is much longer.
If the contact time is too long or the grind is too ne, the coffee will over-extract and turn bitter. If the
contact time is too short or the grind is too coarse, the coffee will turn out weak.
