The man who sold coffee was called the caffettiere ambulante and you could hear him very early in the morning before the sun was set shouting offrifa il caffe . vulite na tazzulella e cafe ? do you want a coffee . This was the usual frase and a frase that is still used today in Naples . The caffettiere ambulante with his white apron on his hips and his tray , fornellino in his hand with coffee pot , cups . plates and sugar . and a bottle of rum . He first served a little bit of dirty water to the workers and hours later he served coffee to the upper class people of more position .