The film was initially conceptualised as 'Jars of Farts', a similar story by director Adam Holt. Before the final script was completed, however, the farts were changed to hearts.
The film was shot in early 2014 near Llanelli, Carmarthenshire, but took a long while in post-production and was never officially released until April 2017 as a part of production company Broadside Films' goal of releasing 12 short films within a year.
Main actor Chris Woods has appeared in many films by Broadside - as well as playing the lead in Jars of Hearts, he can be seen in the background of 'Always Read The Label' and in some scenes from 'Far Away Man'.