"You say Diam, I say yes!"
"You say Diam, I say yes!"

MANUFACTURING PROCESS

Diam, Mytik Diam and Altop are technological cork closures resulting from a unique manufacturing process that ensures incomparable sensorial neutrality and perfect consistency from one closure to another. Each recipe is designed to ensure the perfectly controlled ageing of your wines. 

 

Stages in the manufacturing process


Cork Harvest

The main material used in the manufacture of our closures is cork, which provides incomparable elasticity. Every year, 25,000 hectares of cork are traditionally hand-harvested for our closures manufacture.

Maturation, Boiling, Grinding

After drying over a period of 6 to 12 months, the raw cork is washed in boiling water, then crushed before filtering the ground cork by densimetry. Only the suberin, the noblest part of the bark is kept.

DIAMANT® Process

This patented and environmentally-friendly process uses supercritical CO2 to extract from the cork the compounds that cause sensory deviations, including the infamous cork taint (TCA).

Moulding

To ensure perfect consistency and control over the ageing of our closures, microspheres exclusive to our range of products are added to the ground cork. Water and a binding agent are added; then the mixture is moulded and cooked in the kiln.

Machining, Marking

A sanding machine adjusts the diameter, a trimming machine cuts to the desired length prior to creating the chamfered edge or edges. The closures are then satin-finished prior to the two ends being marked according to the requirements of each customer using branding or laser marking.

Quality & controls

Each batch of closures is subjected to stringent quality controls on leaving the factory, when arriving at each of the finishing plants and then after completion of marking and surface treatment. Samples are archived in the laboratory

Logistics

Our production flow and distributor network enable us to be close to our customers. Today, our products are distributed in over 55 countries.

Quality & THE ENVIRONMENT

Diam is committed to offering its customers the very best quality product and service.

Quality

DIAM closures are manufactured according to a strict set of checks and controls, based on laboratory analyses within a management system that draws Inspiration from the ISO 9001 standard.
Technical data-sheets for each product are available upon request.

FOOD SAFETY COMPLIANCE

The factories manufacturing Diam closures are FSSC 22000 certified. They meet all HACCP hygiene requirements and standards.
Each component of Diam products meets all quality and food safety compliance standards in Europe and America (FDA).
All documentation is available upon request: food contact compliance for still wines, sparkling wines and spirits, global and specific migration analyses, CECA, Cacherout, etc...

ENVIRONMENT

In 2004, Diam was the first closure to undertake the Carbon Footprint audit within the scope of its overall Quality and Environment Assessment Procedure. Today, we are going even further in this approach with the lifecycle analysis of our products. 

Origine by Diam® cork is also OK Bio-Based certified with 4 stars, that to say bio-based at 80%  to 100%.

The company propose, as an option, FSC® corks.

Let's discover here our sustainable actions each day more important. 

 

                        

 

Quality

DIAM closures are manufactured according to strict controls : laboratory analyses, management system that draws inspiration from the ISO 9001 standard.
Products technical data-sheets are available upon request.

FOOD SAFETY COMPLIANCE

Diam closures plants are FSSC 22000 certified. They meet all HACCP hygiene requirements.
Each component of our products meets all quality and food safety compliance standards in Europe and America (FDA).
Documentation available upon request: food contact compliance, global and specific migration analyses, CECA, Cacherout, etc...

ENVIRONMENT

In 2004, Diam was the first closure to undertake the Carbon Footprint audit within the scope of its Quality and Environment Procedure. Today, we are going even further in this approach with the lifecycle analysis of our products. 

Origine by Diam® cork is OK Bio-Based 4 stars certified (80%  to 100% bio-based).

The company propose, as an option, FSC® corks.

Let's discover here our sustainable actions.