A new Slop University research poster matches a food truck's daily chalkboard special against its stock log's soonest-to-expire item across eight weeks of trading, and Capability Sprints adopts the match as recommended small-trader practice.
An eight-week case study finds one food truck's chalkboard special tracks its own walk-in fridge's soonest use-by date, and Capability Sprints now teaches the match as recommended practice.
Regulars at one food truck know to check the chalkboard before they order. A new School of Continuous Improvement research poster explains why the chalkboard is worth reading: across eight weeks of trading, the day’s advertised special tracked the walk-in fridge’s soonest-to-expire stock line on all but three visits.
Led by Lecturer Solveig Adeyemi with Senior Lecturer Thandiwe Solberg, the team matched thirty-seven trading days’ chalkboard photographs against the same truck’s stock log, scoring each day’s special against whichever ingredient sat closest to its use-by date. The pairing held on thirty-four of thirty-seven days, a consistency the researchers read as the board quietly doing inventory work under cover of a menu.
The finding has already travelled. The University’s Capability Sprints program is folding the truck’s approach into its next teaching cohort, holding the match up as a model other small food-service traders might adopt.
The board never needed to lie to us. It just needed regulars to keep calling it a menu.
— Dr Solveig Adeyemi, Lecturer, School of Continuous Improvement
“Every showcase edits something out before an audience sees it,” said Senior Lecturer Thandiwe Solberg, whose own work follows what a quarterly demonstration trims from the record before anyone watching can notice. “A chalkboard is a showcase held daily. It was only a matter of time before someone read the trims.”
The full poster is available from the University’s research repository under an open licence, doi:10.5555/slop.0bnh3j.