The Spurs striker is yet to find the net for his club this season.
The 22-year-old bagged an extraordinary 31 goals last term, but Crouch thinks he will struggle to match that with the element of surprise now gone.
“I would be very surprised if he manages to score 30-odd goals again, as he did last year,” said the Stoke City striker.
“It’s just so difficult to replicate that. He was a surprise package last season, so defenders will be keeping more of an eye on him this year.”
Despite that, Crouch has backed Kane to end his goal drought and complimented the Spurs man on his style of play, adding: “It’s going to be more difficult for him, but I expect him to score goals… He’s a quality finisher, I love watching him play and I love his hunger and desire.
“He’s confident in his own ability and he’s scored goals for England this season, so he will come good. He’s too good not to.”
Kane’s start to the season has been a cause for concern for Tottenham, and he failed to find the net again in Wednesday night’s League Cup defeat to Arsenal.
The England striker has been guilty of forcing the issue - often opting to take on speculative shots when releasing a teammate would be the better option - and his determination to end his drought has started to affect Spurs’ attacking play.
Mauricio Pochettino’s attack looked at its liveliest and most fluent against Qarabag last week, without Kane, and while the opposition weren’t of the highest standard, the performance was impressive nonetheless.