Which grapes went into which bottle? The Food Detectives bring perfect clarity to Douro winebr br Europe's top food safety experts are joining forces to crack down on fraud. Euronews is following them in this special series called The Food Detectives. In Episode 5, we meet the Portuguese team aiming for perfect clarity in Douro valley wine.br br In partnership with the European Union & the Watson Projectbr br READ MORE : br Euronews Next is a future-focused news section covering global innovation, science and technology with a European perspective.