 Edward Hack developed the original idea and model of lemon juice being contained inside lemon @-@ shaped and coloured packaging in the 1950s . The product was then designed and produced by Cascelloid Ltd . Hack presented Cascelloid with a fresh lemon he acquired at Covent Garden , upon which to base the plastic container . Hack had performed significant searches at several markets to find an optimal model . Cascelloid stated that Hack reviewed and evaluated the entire inventory of lemons at Fortnum and Mason ’ s , Selfridges , Harrods and Covent Garden , the latter of which involved examining three cases of lemons that contained around 300 lemons in each case . 
