The German team, which faces Serbia in Group D on Friday, is the country's youngest in 76 years, but Low said his players had cool heads and would not get carried away with their scintillating early form.
"I have to put things into perspective and I think players can do that, I think they can handle this pressure well," Low said just minutes after landing in Port Elizabeth.
"There's no guarantee for success, we have to be very careful, we only just started this tournament.
"I think we know how to come to terms with this situation, even the young players. We know there was a lot of applause for our performance but we tried to fend it off a bit and keep a distance from our performance and the response," he said.
The backbone of Germany's squad is from the European under-21 championship winning team in 2009.
"We don't know how the players will perform in extreme pressure situations, but what we do have is great potential but what I can promise is we are fully motivated and we face up to the challenge," Low added.
"There will be more difficult games than Australia. Tomorrow will be a strong fight, a cutthroat competition, but we are hungry."
