Natural Cork Stoppers
- Cork stopper produced by punching carefully selected cork slabs
- Peroxide washing
- Silicon Elastomer coating
Technical Specification
| Test |
Specification |
Method |
| Length |
NV ± 1.0 mm |
ISO 9727 / NP 2803-1 / IM 21 |
| Diameter |
NV ± 0.5 mm |
ISO 9727 / NP 2803-1 / IM 21 |
| Ovality |
≤ 0.7 mm |
ISO 9727 / NP 2803-1 / IM 21 |
| Moisture Content (%) |
4 - 8 % |
ISO 9727 / NP 2803-2 / IM 13 |
| Extraction Strength (daN) |
25 ± 10 daN |
ISO 9727 / NP 2803-4 / IM 18 |
| Compression Force |
70 ± 30 daN |
ISO 9727 / NP 2803-3 / IM 20 |
| Sealing behavior |
Absence of leakage at 1.5 bar |
ISO 9727 / NP 2803-5 / IM 01 |
| Capillarity |
< 2 mm |
IM 03 |
| Microbiology Test |
< 4 colonies/stopper |
ISO 10718 / NP 3725 / IM 24 |
| Peroxide Residue |
≤ 0,2 mg/stopper |
IM 22 |
| Solid Residue |
<1 mg/stopper |
NP 3383 / IM 15 |
| Sensory Analysis |
Absence of strange odours |
ISO / DIS 22308 / IM 05 |
Food Conformity
We can assure that all raw materials used in the production of nature cork stoppers are in agreement with Nacional and Europian Union Legislation of Products to Food contact, following the next requisits:
- 2002/72/CE, concerning the adaptation of products for contact with food,
- 2004/02/CE, concerning the concentration levels of heavy metals.
