A gooseneck kettle's thin, curved spout is what makes precise pour-over technique possible. A regular kettle's water rushes out as a wide, unpredictable stream, but a gooseneck lets you control both where the water lands and how fast it flows — the two things that determine even saturation and consistent extraction in methods like V60 and Chemex. Without one, water tends to gush unevenly, digging channels through the grounds and leaving parts of the bed under- or over-extracted.
