The deal, announced Sunday by President Trump and European Commission President Ursula von der Leyen, imposes a 15% U.S. tariff on most EU imports, while American goods exported to the union's 27 member countries will face no tariffs. Previously, U.S. exports to the EU faced an average tariff of roughly 1%, according to Goldman Sachs analysts.

The hike could destabilize the long-entrenched import, distribution and retailing system while not providing much export potential for US wineries.