Natural Cork Stopper

A wholly natural product, recommended for wines that need to age in the bottle, satisfying the expectations of the world’s leading winemakers 

The Natural cork stopper is recommended for wines that need to age in the bottle, satisfying the expectations of the world’s leading winemakers and the most sophisticated wine lovers. It is a wholly natural product enhanced by advanced technology, which allows the wine to age in the best possible conditions.



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Physical - Mechanical
Characteristic Specification
Length l ± 1,0 mm
Diameter d ± 0,5 mm
Ovalisation ≤ 0,7 mm
Moisture 4% — 8%
Extraction Force 20 — 40 daN


Chemical
Characteristic Specification
Peroxide Content ≤ 0,1 mg/stopper
Dust Content ≤ 3 mg/stopper


Visual
Characteristic Specification
Visual Grade Reference ≥ -5%


OTR (Oxygen Transfer Rate)
Characteristic Specification
12 Months 2,5 mg/stopper
24 Months 2,6 mg/stopper
36 Months 2,7 mg/stopper
48 Months 2,7 mg/stopper
60 Months 2,8 mg/stopper


Visual Grade: deviation with regard to reference sample

Stopper sampling methods as per ISO 2859 standard — Cork Products