The Italian town with a boozy secret

Editor’s Note: All-new episodes of “Stanley Tucci: Searching for Italy” Sundays, at 9 p.m. ET only on CNN. Sign up to CNN Travel’s Unlocking Italy newsletter for more. CNN  —  It’s super strong, fennel-flavored, as transparent as water – and in many households across Sardinia it’s still produced illegally. Filu ‘e ferru, or “iron wire,”

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