The country's two major breweries say the tournament has been a boon for sales so far.
However, those companies - Lion and DB Breweries - are foreign-owned, with their profits siphoned off to overseas shareholders.
Auckland-based Lion said volume for its top 10 beer brands - which include Steinlager, Lion Red and Stella Artois - was 38 per cent higher last month, compared with the same period in 2010.
External relations director Liz Read said more than three million Steinlager "white cans" had been sold. The limited edition cans were released to coincide with the tournament and hark back to the All Blacks' successful 1987 World Cup campaign, when the beer was sold in a white can.
Read said the company's biggest-selling premium beer brand, Steinlager Classic, had seen almost 80 per cent volume growth in September, year-on-year. It was also the biggest month for Steinlager tap sales since March 1997, she said.