Their flagship Brick Lane cafe came under attack last month from anti-gentrification protesters, who daubed the shop with grafitti and hurled missiles are the windows.
Class War, the anarchist group behind the attack, said they were protesting a destruction of the area's local community, and the Keeny brothers have previously been forced to defend their prices after being asked whether local people could afford £3.20 for a bowl of cereal.
Soon after the cafe opened in December last year, a Channel 4 News presenter accused the pair of being out-of-touch “hipsters” for selling cereal in one of London's most deprived boroughs.
But, Alan says, the existence of independent businesses such as theirs helps to diversify areas, and stop high streets being taken over by generic chains.
He told the Times: "Hipsters - whatever that means - are driving the flat-white economy, which helps independent shops.
"Where would we be without independents? Do we want high streets with just Tesco, Starbucks and H&M on every corner?
"People don't want identical high streets, they are looking for different experiences.
"That's all we're offering, it's just supposed to be a little, slightly unusual treat."
