ardagh group has achieved two memorable &ldquofirsts&rdquo on the new bottle of sailor jerry, a premium spiced rum from william grant & sons.thanks to detailed and painstaking work at the company&rsquos design and technical centre, ardagh has been able for the first time to produce at its scottish plant in irvine a cork mouthed bottle using its weight saving &lsquonarrow neck press and blow&rsquo nnpb glass manufacturing process.whilst a cork mouth finish is relatively straightforward to produce using the blow blow process, it was untested and far more difficult u