Coming off an intense 21-5 win over a rugged and tough Argentinian side in Wellington on Saturday night, Hansen declared the forwards would be ready for the men in green.
"Our forward pack showed us they are capable of fronting it with a very physical side. We have got a forward pack that we can be proud of and we have just to keep growing their ability to play the game," he said.
"Certainly we can be confident we are going to Dunedin that we can provide some quality ball for what is a pretty exciting backline."
However, it appears unlikely Otago favourite Adam Thomson will get a run in the All Blacks' first test at Forsyth Barr Stadium.
Hansen acknowledged blindside flanker Liam Messam had made a statement with his performance off the bench in Wellington.
He came on for Victor Vito three minutes into the second half and was prominent as the All Blacks slowly forced the life out of the visiting side.
"Liam's performance tonight was pretty commanding though I'm still happy with the way Victor is performing. He is a maturing player and is getting better all the time.
"At the moment, Liam has the wood over him.
"The challenge is for Victor, and Adam Thomson, to try and get past him."
The test was tight on Saturday night, and is likely to be much the same this Saturday in Dunedin, with the South Africans to be just as intense in defence as the men from Argentina.
Hansen laughed off suggestions the rock-solid Pumas defence was because of the work done throughout the week by former All Black coach Graham Henry.
"Argentina have been a very, very good defensive team for a long time. The system they use is very, very good.
"They give you a lot of space on the outside, and make you think there's a bit of fool's gold out there and they swallow you up.
"They have a lot of desire in their defence."
Hansen admitted his side probably tried to play too much rugby in the first half, pushing passes that did not have to be thrown.
It was a learning curve for inside backs Aaron Cruden and Aaron Smith, Hansen said.
"Both halves are very inexperienced from a test point of view. Tonight's game would have done wonders for them.
"You do not want them playing test matches that are always easy. You want them to be challenged.
They will go away and review things they did in that game and be better for it."
Hansen said the style of game was dictated by the weather conditions, the wind swirling around throughout the game and rain falling at various occasions.
He will not get any of that this week, in a covered stadium.
Hansen reported no major injuries had come out of the game, although there were a few sore bodies after the rugged encounter.
The halftime break ended up being 23 minutes long after the lights went out just as the sides were due to come back on to the field.
The power outage affected the stadium and nearby area.
Teams did some skill drills in their extended halftime break, and kept warm as the power slowly came back on.
