DL-racemic tartaric acid, potassium ferrocyanide and calcium phytate shall be used only under the supervision of an oenologist or technician officially approved by the authorities of the Member State in which they are used and the extent of whose responsibility shall be fixed, if necessary, by the Member State concerned.
Pero la novena vez que llame, me dijeron que alguien canceloEurLex-2 EurLex-2