One of the drinks Brown, who is originally from Newcastle, made for the final was "Sea to Skye", a cocktail made of just Talisker Whisky, Carbenet Sauvigon and Verjus.
"I don't like how the industry tends to over complicate things. Taste is non-linear," he said.
Brown said it would be "extraordinarily scary" putting his 13 years of bartending to the test against the world's best.
"But it's an absolute honour to represent New Zealand. I hope I can bring something back for this wonderful nation.
"Since I landed in New Zealand, there's never been a question of leaving."
Brown was also delighted to have the opportunity to open his own bar.
"It would combine my two passions: music and bartending; simple things that keep people happy."
Brown bet bartenders from Auckland bars Bedford Liquor & Soda, Revelry and The Gin Room, and Wellington bar Roxy to take out the national title.