"We've got such a great structure and such a great a team environment, I think it's more the specific details that are going to push us on a little bit further. In its essence, it is things on the field that need to be better.
"We've played Brazil a few times and other South American teams and they bring something completely different to the table," White said.
"It's sometimes a little bit unpredictable which is not what we're used to but I think it's important to play these games and replicate whatever might get thrown at us at World Cups and Olympic Games."
Ferns coach Tony Readings said the series against Brazil in Brazil will give his squad valuable experience playing in the conditions they will face, if they qualify for the Olympics.
"We will be implementing several changes during this tour as we work towards continuing the progression of the team.
"The World Cup provided us with some excellent learnings and it is now down to the whole group to put these into place and ruthlessly pursue the performance improvements we require."
The Football Ferns recorded their first win over Brazil at the Valais Cup in Switzerland in 2013 before 1-1 and 0-0 draws in New Zealand last year. The other recent match-up was a 1-0 defeat to the South Americans at the 2012 London Olympics.
Football Ferns v Brazil
Saturday 28 November, 3.30pm (Sunday 29 November, 6.30am - NZ time)
Estádio do Pacaembu
Sao Paulo, Brazil
LIVE on SKY Sport
Football Ferns v Brazil
Tuesday 1 December, 9pm (Wednesday 2 December, 1pm - NZ time)
Arena Pantanal
Cuiaba, Brazil
LIVE on SKY Sport