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| Friday 25 Jul 2008: Banned vodka |
| The Polish "Bison Grass" vodka Zubrówka was banned in the USA in 1978, because the bison grass which is traditionally used to flavour the vodka contains the toxin coumarin, of which some ends up in the spirit. In 1999, Polish distillers introduced a special version for the US market with artificial flavouring. |