Mr Greig said the company was constantly experimenting with its coffees and trying to get its hands on premium single-origin beans.
"It's a combined effect of getting the best beans you can, roasting them perfectly, blending different coffees to get the ultimate taste experience, and tasting to make sure you're doing it right," he said.
Aaron Bingham, who co-owns the Mill Lane business with Raelene Rankin and Beverley Naylor, said a lot came down to Mr Greig's skill.
They sourced their beans from South and Central America, Indonesia, East Timor and Africa, and used an "ancient" roaster made in Austria in the 1950s.
The recognition would be a boost for the company and the 21 cafes between Taupo and Kaitaia serving Max coffee. Mr Bingham said he was grateful to "all the people who buy our coffee, our cafes and believers".
Max Coffee has three full-time and three part-time staff. They were planning to celebrate last night with champagne and scallops.
Mr Greig, who previously owned the Sugar Boat restaurant at Waitangi, said Max customers were passionate about coffee.
"You're making something people love, so it's a pretty positive experience."
The firm was founded in 1999 by Ben Lawrence, who originally did the roasting at home in Kerikeri. The company now produces more than 1000kg a month.
Max Coffee is also available at supermarkets in Northland and Auckland as well as two cafes in Fiji.
Eighty companies entered 313 coffees in the awards which were judged by a panel of 12 experts headed by an international coffee consultant who goes by the name Instaurator.
Max medals
Gold: Max Morning Blend (best supermarket plunger).
Silver: Max Organic Blend (best ethically traded); Max Exotic Blend (best supermarket espresso).
Bronze: Max #1 Organic Blend (best organic); Max #7 Yirgacheffe Single Origin (best single origin).
The only other Northland winner was Rush Coffee from Wellsford, which won bronze in the supermarket espresso category.
