Bayern have been nigh-on unstoppable in the league so far this season, dropping just four points from their opening 15 games to take a four-point lead at the top of the Bundesliga table.
The reigning champions demolished Hamburg 9-2 in the same fixture last season, and Jarchow believes that things can only get better than that for his side when they travel to the Allianz Arena again this weekend.
"Nobody expects anything from us. Fundamentally, we can only win," Jarchow told Bild.
"I am expecting us to present ourselves differently. We've got to hold our own and emerge from the game well.
"If you forget about the 9-2 from last season, then Saturday's game is our easiest of the season."
Hamburg currently sit 13th in the table following their 1-0 home defeat to Augsburg at the weekend.