Older and cheaper

2019-03-07 14:18:01

By Barry Fox Walker Asset Management of Connecticut has developed a system to allow fast food restaurants to adjust the price of food according to its age. Under the system, a countdown begins as soon as food is cooked, so each burger or pie has an expiry time. A coloured indicator for each item changes from green for fresh to red for old and finally bleeps a warning when it’s time to throw the food away (WO 99/10794). As the food ages,