English breakfast was a type of tea.
When Sayf Udeen served mint tea, Raine Creevy said that she liked the smell and that it might be a nice change from English breakfast. (AUDIO: Crime of the Century)
It was the only type that Zoe Blake would drink, believing that all other types were fancy. Bilis Manger gave her some. (AUDIO: Dead Man's Switch)
Hargreaves offered English breakfast to the Fifth Doctor, Nyssa and Tegan Jovanka aboard the HMS Aquitaine. (AUDIO: Aquitaine)
According to a joke book which the Doctor and Yaz became trapped within, the TARDIS's tea-making machine only served English breakfast tea because the chamomile-ean circuit was broken. (PROSE: Knock! Knock! Who's There?)