29mm Crown Caps · Made in Italy

29mm crown caps in stainless steel, aluminium and tin-plated steel for secondary fermentation

Our 29mm crown caps are the professional standard for tirage of Méthode Traditionnelle sparkling wines, Champagne and craft beers. Made in stainless steel AISI 304, aluminium and tin-plated steel, they withstand between 7 and 10 bars of internal pressure guaranteeing total tightness and zero odour transfer.

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29mm crown cap front and back with integrated bidule
Our product

The 29mm crown cap with bidule: Italian precision for every secondary fermentation

The 29mm crown cap with integrated bidule is the essential tool for in-bottle secondary fermentation of sparkling wines, Champagne and craft beers. Mida Capsules manufactures it with food-contact certified materials, tested to guarantee a near-absolute barrier against oxidation and zero pressure loss throughout the ageing process.

Key features

Why professionals choose Mida

Corrosion Resistance

Stainless steel AISI 304 caps protect the product from rust and oxidation during ageing in humid cellars.

Guaranteed Tightness

The cap profile adheres perfectly to the bottle bead, eliminating the risk of pressure loss.

Technical Liners

Different liner profiles — bidule-compatible or with integrated liner — for precise control of oxygen transmission.

Certified Materials

Every cap complies with MOCA food-contact materials regulations, guaranteeing absolute neutrality.

Applications

Our caps for every need

Champagne and Méthode Traditionnelle

Crown caps for sparkling wines and Champagne

Our 29mm crown caps with bidule are the standard for in-bottle secondary fermentation of Champagne and Méthode Traditionnelle sparkling wines. Resistance between 7 and 10 bars, zero loss, zero odour transfer.

Craft Beers

Crown caps for craft beers

Ideal for in-bottle refermentation of premium craft beers. Our crown caps guarantee consistent carbonation and absolute organoleptic neutrality.

Compatibility

Compatible with standard 29mm finish

Mida caps are compatible with all bottles with standard 29mm finish, suited to industrial capping systems such as GAI and similar.

Available colours

29mm crown caps in five standard colours

Mida crown caps are available in five standard colours for visual identification of different product types in the cellar. Each colour is achieved with low environmental impact coatings, certified for food contact.

29mm grey crown capGrey
29mm red crown capRed
29mm blue crown capBlue
29mm green crown capGreen
29mm gold crown cap for ChampagneGold
Technical specifications

Crimping diameters for 29mm crown caps

MaterialCrimping diameter
Aluminium31.3 — 31.5 mm
Stainless Steel31.4 — 31.6 mm
Tin-plated Steel31.4 — 31.6 mm
Storage and use

Storage instructions

Technical drawing 29mm crown cap with dimensions — diameter 35.45mm, height 6.8mm
Shelf life

Use within 9 months

To be used within 9 months of the manufacturing date, indicated on the production sheet enclosed with each box.

Storage

Store in a dry place

Store in dry places away from heat sources. The cap is sensitive to prolonged heat and humidity.

On request

Custom crown caps with your logo

Mida Capsules offers screen-printing customisation of crown caps with your winery or brewery logo. Available in five standard colours for an agreed minimum order quantity.

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Custom screen-printed crown caps with winery logo
Certified quality

Our certifications

ISO 9001:2015 Certification FSSC 22000 Certification HACCP Certification
Get in touch

Contact us

Request a quote or information about our 29mm crown caps for your project.