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High-quality corkscrews feature hollow helical wire worms

Helical spiral steel wire cores into natural bottle corks without crumbling bark

Traditional corkscrews use a spiralled metal wire called a worm. Unlike a solid wood screw, a high-quality corkscrew worm is hollow down its central axis, allowing the steel helix to core into natural cork without expanding it or stripping inner bark fibres as it pulls upwards.

Where this comes from

Encyclopaedia Britannica

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Tags: wine, cork, tools

High-quality corkscrews feature hollow helical wire worms: the short answers

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Helical spiral steel wire cores into natural bottle corks without crumbling bark. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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