Now leading glass manufacturer Beatson Clark is capitalising on the trend by providing a 300ml food jar for a range of ready-to-serve premium cocktails. London Rd Jam Jar Cocktails is a range of authentic flavours, including Mojito, Cosmo and Singapore Sling. Each recipe has been developed by expert mixologists with a spin on the classics and packaged in Beatson Clark recyclable jam jars featuring label designs bespoke to each flavour.