The Turin club have won the league and cup double in Italy for the last four years and are aiming to become the first team from Europe’s top five leagues to win five national cup titles in a row, although Barcelona and Paris Saint-Germain are chasing the same objective this season.
Bernardeschi profited from an error by Bologna goalkeeper Angelo da Costa to sweep the ball into an unguarded net after nine minutes, before teenage striker Kean pounced on a loose ball to score his second Juventus goal early in the second half.
Juventus progressed to the quarter-finals for the 12thyear in a row, a tournament record.
Earlier on Saturday, AC Milan secured passage to the next round with a 2-0 extra-time win over Sampdoria that came courtesy of two volleyed goals from substitute Patrick Cutrone. Lazio will join them thanks to a 4-1 win over third-division Novara in Rome.
Cagliari or Atalanta will face Juventus in the quarter-finals at the end of January, while Milan set up a clash with Napoli or Sassuolo and Lazio will take on the winner of Sunday’s meeting between Inter Milan and Benevento.
(Reporting by Alasdair Mackenzie; editing by Clare Fallon)
