To be the real deal, the espresso has to have a 'round, substantial and velvety' taste and 'hazel-brown to dark-brown foam, characterised by tawny reflexes', according to the Italian Espresso Institute. It must have a long-lasting aroma which has "notes of flowers, fruits, toasted bread and chocolate", says the institute, set up in 1998 to safeguard espresso.
AFP