(EN) The invention concerns a long-lasting unilayer or multilayer packaging containing an alcoholic or non-alcoholic anethole based beverage, characterised in that the layer in contact with said beverage is made of a polymer containing condensed aromatic patterns. The polymer is in particular naphtalate polyethylene (PEN) with a crystalline rate higher than 20 %. The invention also concerns a method for limiting the degradation of anethole based beverages using such a polymer.
