The title of this film, All Dirt Roads Taste of Salt (2023), refers to the practice of eating clay dirt, which has been common among poorer people who live in rural areas in the Southern United States, especially African-Americans. Jannie Hampton, who plays Grandma Betty in this movie, was familiar with the practice. Director Raven Jackson had also written a poem by that title, but the poem is otherwise unrelated to the film.
Raven Jackson got her inspiration for many of the scenes in this film from photo albums belonging to her grandmother, her mother's mother, who was from Mississippi. She also looked through many photography books, most notably "The South in Color" by William Ferris. One of the churches in Ferris' book, Rose Hill Church in Meadville, Mississippi, is where the wedding scene in this movie was filmed.
The movie was filmed entirely in Mississippi. Director Raven Jackson had planned to film some footage in Tennessee, where she was born and raised. However, once she received approval to film at the Rose Hill Church in Meadville, Mississippi, she scrapped plans to film along the Cumberland River and kept all filming in one state.