Torres has scored just once in his last 14 games for Chelsea but Benitez is convinced his compatriot can rediscover his goalscoring touch and also praised his all-round contribution to the team.
He said: "Obviously as a manager you want your players, and especially your strikers, scoring a lot of goals.
"But Fernando is doing a great job for the team. He is training hard and, I will say it again because I'm convinced, he is doing a great job for the team and he will score goals.
"When you analyse players, with strikers it is easy to say 'How many goals' but when you're playing with 11 players they all have to do their jobs and part of the job for Fernando is to create space and to put players in good positions with his movement."