The European Commission is to ban the use of refillable bottles and dipping bowls of olive oil at restaurant tables from next year.
From 1 January 2014, restaurants may only serve olive oil in tamper-proof packaging, labelled to EU standards.
The Commission, the EU’s executive branch, says the move will protect consumers and improve hygiene.
But critics have accused the EU of unwarranted meddling at a time of economic crisis.
A Pew Research Center poll released on 13 May showed positive views of the European Union are at or near their low point in most of the eight countries surveyed.
European Commission spokesman Oliver Bailly said the olive oil regulation would benefit consumers.
“We are just making clear that when you want to have olive oil of a certain quality in a restaurant, you get exactly the one you are paying for,” he told a news briefing in Brussels.