Thieves have used forklifts to steal 700 cartons of beer in a daring heist.

According to Foodweek, the beer, worth more than AUD20,000 (USD13,800), was stolen from a Carlton & United Breweries (CUB) warehouse late last month.

The thieves, whom police described as "a well-organised group", used two CUB forklifts to lift 10 pallets of beer, including 580 cartons of Melbourne Bitter and Victoria Bitter, onto a truck.

Police were baffled as to how the thieves achieved the theft without tripping security systems, the report said.