After numerous cork trials we found SupremeCorq to be the most innovative and progressive closure available
St. Francis Winery
Extraction
SupremeCorqs are as easy to remove from the bottle as tree bark corks
SupremeCorqs form a tighter seal with the bottle than most tree bark corks. Once the seal is broken, the cork should be easier to extract than a tree bark cork. Irregular bottlenecks may also make the corq more difficult to extract. Therefore, we recommend a waiter’s type corkscrew as it provides the optimum leverage to break the initial seal and remove the closure.
SupremeCorq closures are chamfered (slightly rounded) at the ends. This allows for easier initial insertion on the bottling lines. It also ensures that the closure does not fray at the ends and makes it easy to re-insert.
Food-grade silicone to lubricate SupremeCorqs
Food grade silicone is used to lubricate SupremeCorqs and T-Tops, similar to that which is used for tree bark cork. A specific amount of lubricant is mechanically measured and applied during the finishing process. These amounts are continually checked through extraction force measurements of the finished product. All components in the manufacture of SupremeCorqs comply with FDA and EU regulations.
Quality control checks on extraction
Extraction force tests are performed on every order produced. These tests are conducted on an automated industry standard extraction unit. The specification for extraction force is 22-38 kilograms (216 – 373 Newtons, 48-84 pounds) measured 24 hours after insertion. The diameter and ovality of the bottle bore will have an impact on the extraction force as well.
SupremeCorq extraction when the bottle of wine is chilled
Our studies show that after chilling to 40°F (5°C) for 24 hours, extraction force increases by only 1-2 kilograms (2-4 pounds). Therefore, the extraction force is still well within our specifications and the closure can still be comfortably extracted from the bottle.