In order to be certified, products prepared from hops as referred to in Article 7 of Regulation (EEC) No 1784/77 must be manufactured within a closed operating circuit.
Sertifitseerimiseks peavad määruse (EMÜ) nr 1784/77 artiklis 7 osutatud humalast valmistatud tooted olema toodetud suletud töötlemisringis.