 The plastic lemon container and the idea of marketing lemon juice in this manner was also undertaken independently by Stanley Wagner , a businessperson in the frozen food industry , and also a former Royal Air Force fighter pilot . Wagner 's plastic lemon was produced by Shipton , a plastics company . Wagner was with the company Coldcrops , Ltd . , which produced Realemon . The Realemon trademark was developed and used for a lemon juice product based upon reconstitution in the 1940s . Realemon was later renamed to ReaLem by Coldcrops . Hax lemon juice was the first to be packaged and marketed in said lemon @-@ shaped container , with Coldcrops following shortly thereafter with their own design . It is of intrigue to some that both Pugh and Wagner were both former Royal Air Force pilots . 
