Emerson's started 17-years ago and its annual production figure was less than 20,000 litres, but the two new tanks will boost potential weekly production to 15,000 litres, general manager Bob King said yesterday.
"We're having increased demand from Dunedin and around the country," Mr King said.
About a third of sales each went to Dunedin, Wellington and around the South Island, but Emerson's was intermittently supplying Melbourne hotels.
"First of all, we have to ensure the local supply, as that is where the growth has been," Mr King said.
The two 1.3-tonne, 10,000-litre capacity stainless steel tanks were designed, built, manufactured and installed by Dunedin company Farra Engineering, lifting the total number of tanks to 10.
The brewery makes a core range of five beers, plus two limited editions each year and three seasonal wheat beers annually as well.
