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Metal Wirehoods: Champagne Cage Production

A metal wirehood — the cage over a champagne cork — holds the cork against sparkling wine pressure of roughly 5–6 bar. It looks simple, but its four wire legs, twist and tab are each a production step with its own tolerances.

What the wirehood does

Sparkling wine holds carbonation at significant pressure; the cork alone cannot resist it over time. The wirehood (muselet) locks the cork to the bottle neck flange, keeping compression on the cork from the moment the cage is twisted on until the wire tab is released by the consumer.

How it is produced

1. Wire forming: galvanized or plated wire is bent into the four-leg cage profile.
2. Assembly: the legs are joined to the upper cage ring and the lower skirt that grips the neck flange.
3. Twist tab: the folded tab that the consumer untwists is formed — its pitch and turn count control how easily it opens.
4. Plating and finish: tin, brass or colored plating; printed or logo tabs for brand presentation.

Matching cage to cork and bottle

The cage must match three dimensions: the cork's protrusion height after insertion, the neck flange diameter, and the skirt depth. A cage that grips too high rides on the cork; too low, it interferes with the foil capsule. Samples of cork and bottle should go to the cage supplier together.

Customization

• Plating color: tin (silver), brass (gold), black or custom colors
• Printed or embossed brand tabs
• Turn count of the twist tab (opens with fewer or more turns)
• Wire gauge for a heavier or lighter feel

Products in this range

Frequently asked questions

What pressure does a champagne wirehood hold?

Sparkling wines are typically held at roughly 5–6 bar of internal pressure; the wirehood keeps the cork compressed against that pressure so it does not creep out over time.

What is the twist tab on a wirehood?

It is the folded wire loop the consumer untwists to release the cage. The number of turns in the twist controls how many rotations are needed to open — six is the traditional reference.

Can wirehoods be customized with a brand?

Yes. Plating color (tin, brass, gold, black) and printed or embossed brand tabs are standard customization options, ordered to match the capsule design.

How is a wirehood matched to a cork and bottle?

By three dimensions: cork protrusion height, neck flange diameter and skirt depth. Send cork and bottle samples to the cage supplier so the cage grips correctly.