Caravell’s (Buckingham) retarder-prover can slow down and hold the development of dough for up to three days. It then warms the dough to the correct prove temperature to ensure it is ready for the oven at the right time. All functions are controlled by a microprocessor, which enables the cycles and times to be programmed for a number of days. The cabinet can hold 20 shelves of size 30in x 18in. It has a capacity of 800 litres and a temperature range of –15ºC to 35ºC.