Technical cork stoppers

Description

Twin Top® Evo is the advanced version of Amorim’s popular Twin Top® technical stopper, aimed at the popular premium segment, with high-grade natural cork discs at both ends and a micro-agglomerate cork body. It is ideal for wines with floral and fruity notes, recommended to be stored in the bottle for up to 96 months. The individually moulded micro-agglomerate cork body assures higher homogeneity and greater physical and mechanical resistance.

The natural cork discs allow an excellent evolution and balance of quality wines. Only the finest natural cork is used to produce this elegant technical stopper, which is subjected to rigorous quality control procedures, including Amorim’s ROSA Hi-Tech treatment for micro granules and Cork-Nova for the discs, both patented by Amorim – thus delivering a high-performance stopper that guarantees an exceptional level of sensorial neutrality.

Bottling recommendations

Ensure any dust its removed before corking.
Ensure the cork is compressed smoothly, to a diameter no less than 15,5 mm.
Ensure insertion of the cork is a quick as possible.
For standard bottlenecks, the cork should be inserted to 1 mm below the top of the neck.
Minimise moisture on the inside of the bottleneck.
Headspace should be at least 15 mm at 20oC.
Don’t leave the cork stoppers in the feeder as to avoid dust.
Always use stoppers with a surface treatment suitable for the type of beverage, bottling process and selected bottle.
A vacuum must be created in order to prevent internal pressures.

Technical

Dimensional
length (l) l ± 1,0 mm
diameter (d) d ± 0,4 mm
ovalisation ≤ 0,3 mm

Physical mechanical
specific weight 250 — 330 Kg/m3
moisture 4% — 9%
extraction force 20 — 40 daN

Chemical
peroxide content ≤ 0,1 mg/cork
dust content ( 1 ) ≤ 3 mg/cork
2,4,6 — trichloroanisole (tca) ≤ 0,5 ng/L*

Otr (oxygen transfer rate)
mg of O2 after 3 months 1,11
mg of O2 after 6 months 1,26
mg of O2 after 12 months 1,34
mg of O2 / year after 1st year 0,03

Co2
balance -297 g/cork