Fruit juice keeps better in glass, study says

Research by the Food Chemistry and Technology Institute of the University of Graz (Austria) has shown that fruit juices bottled in glass are “significantly better” than those packed in cartons or PET,…

Research by the Food Chemistry and Technology Institute of the University of Graz (Austria) has shown that fruit juices bottled in glass are “significantly better” than those packed in cartons or PET, as the properties of the juice are conserved more effectively by glass. According to a statement by the Spanish Center for Glass Packaging on 15 January 2004, the Austrian research concluded that “independently of the length of storage, natural aromas change more slowly in glass packaging than in other types” The study found that while glass packaging is completely inert and air-tight, cardboard is a rather less effective barrier to oxygen, leading to oxidation of the juice and accelerated loss of flavour and vitamins. The authors added that “the compounds dissolved in fruit juices are largely absorbed by the polyethylene lining of the carton”.