Warehouse staff at Carlsberg are on strike in protest at a company decision to limit beer drinking at work to lunch breaks.
Workers claim they're entitled to three beers a day - on top of any drinks they consume at lunch, reports Sky News.
The strike in Denmark follows a move last week to change the rules for on-site drinking at the world's fourth-largest brewer.
Carlsberg spokesman Jens Bekke said: "We think times have changed and we need an alcohol policy that is accepted by society - 93% of Danish companies have an alcohol policy.
"There has been free beer, water and soft drinks everywhere. Beers were removed from all refrigerators. The only place you can get a beer in future is in the canteen, at lunch."
Mr Bekke said Carlsberg drivers claim a "very old right" to have up to three beers per day outside lunch hours.
The warehouse workers say they share that entitlement - a claim the brewer disputes.
"Because of that, the warehouse staff went on strike yesterday, with other staff striking in sympathy," Mr Bekke said.