Can you track precisely which grapes went into a specific bottle of wine? The Food Detectives believe it can be done, and they're testing their tech in the Douro valley in Portugal.
We begin just after dawn on the slopes of the Quinta do Seixo vineyard as the autumn grape harvest continues. It's here that the Portuguese researchers from the EU's Watson project are testing technology that aims to connect every step, all the way from a bottle of wine back to p
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