According to research at Leeds University, to produce a perfect slice of buttered toast, the bread needs to be heated to at least 120°C, and the butter should be used straight from the fridge, applied unevenly within two minutes of the bread coming out of the toaster
The amount of butter should be about one-seventeenth the thickness of the bread
A world record for the highest popping toaster was claimed at the Royal College of Art graduate show in 2008, when Freddie Yauner, 26, sent a slice of toast 2.6 metres (8ft 6in) into the air
"I never had a piece of toast
Particularly long and wide
But fell upon the sanded floor
And always on the buttered side."
James Payn (1830-1898).