European wine and spirits will face a 15% U.S. import tariff until a different deal is agreed in talks expected to continue in the autumn, the European Commission and EU diplomats said on Thursday, dashing producers' hopes of an immediate reprieve.

The U.S. and EU are ironing out the finer details of a trade agreement. Wine and sprits are not expected to be exempted from U.S. tariffs, according to an EU official.

It is the clear understanding of the European Union that the U.S. will implement the agreed, across-the-board tariff ceiling of 15 percent,” the European Commission says.