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    AeroPress Wheel Variable

    Air-through-bed exposure

    Flow, Pressure & Separation · Direct observation

    Air being pushed through the coffee bed near the end of the press.

    Direct observation
    Flow, Pressure & Separation
    Detail panel
    AeroPress-specific
    Manufacturer guidance
    Competition practice
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    Definition

    Air-through-bed exposure is the late-stage condition usually associated with the AeroPress hiss.

    Why It Matters

    Some brewers avoid it to limit harshness risk, while others tolerate or use it deliberately.

    Page Context

    Air-through-bed exposure is part of the Brew Supply AeroPress Wheel and helps brewers describe air being pushed through the coffee bed near the end of the press.

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