Pre-infusion
Initial espresso extraction phase where low pressure (2-4 bars) is applied before full pressure (9 bars). Allows uniform saturation of the coffee bed and reduces channeling. Duration: 3-10 seconds.
Initial espresso extraction phase where low pressure (2-4 bars) is applied before full pressure (9 bars). Allows uniform saturation of the coffee bed and reduces channeling. Duration: 3-10 seconds.