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What does pressing
an AeroPress actually do?

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Start with an upright brewer
on a sturdy mug,

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with a paper filter
in the bottom cap.

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Coffee and hot water
meet in the chamber.

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A little coffee can drip
through at this stage.

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After a stir, insert the plunger

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and let the coffee steep.

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Flavor is already
moving into the water.

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Now press gently.

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The plunger compresses
the air above the brew,

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pushing the liquid
through the coffee bed

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and paper filter into your mug.

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The grounds stay behind.

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More force isn't the goal:

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pressing hard can
compact the grounds

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and make the push harder.

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This hand pressure is different

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from an espresso machine's.

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Steeping starts the extraction.

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Pressing helps the brew

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pass through the filter.