By maintaining air gaps between the slices, the toast rack allows steam to escape from hot toast instead of condensing into adjacent slices and making them soggy. However, this increased air flow can also mean that the toast becomes cold more quickly.
A designer renowned for his innovative take on the toast rack was Christopher Dresser (1834 - 1904), who studied at the Government School of Design in Glasgow from the age of 13 and is widely thought of as the 'father of modern design'.
Modern designs are often made from stamped and folded stainless steel sheet or from welded stainless wire.
Manchester Metropolitan University's Fallowfield Campus main building is often referred to as "The Toast Rack", due to its resemblance to the said device. An affluent block of streets in South West London (SW18) is referred to as "The Toast Rack" by many estate agents, based on what it looks like