JP Magnum stoppers are stoppers intended for bottling effervescent wines. They are manufactured by the individual molding method with sterilized cork granules of controlled size and density to obtain good elasticity. JP Magnum stoppers are the most economical solution while ensuring good mechanical and sealing performance in wines with internal pressures up to 6 bar.
Besides their economic advantage, these stoppers also have the advantage of being completely homogenous within the batch.

Cork type Agglomerated Champagne
Density 270± 25
Absorption with water ≤ 30%
Compression force
Dimensional recovery ≥ 96%
Bottling Time ≤ 2 years