玻璃酒瓶对白酒质量的影响

Effects of Glass Bottles on Liquor Quality

目前白酒企业使用的玻璃包装瓶有透明、半透明两类。白酒用玻璃瓶的组成一般为:Na2O+K2O 13.5%￣14.5%,CaO 7.5%￣9.5%,MgO 1.5%￣3%,SiO270%￣73%,Al2O3 2%～5%。白酒呈弱酸性,当用玻璃瓶装酒时,酒体会与酒瓶中部分成分发生反应,使微量的酒瓶组分溶入白酒。在选用白酒包装瓶时,首先应选用不含对人体有害的重金属等离子酒瓶,以免造成对消费者的伤害;其次应选用SiO2含量高、Na2O含量低、具有较好抗水性和化学稳定性的酒瓶;在使用前预先用水对酒瓶进行处理,可有效减轻酒瓶组分对白酒质量的影响。(孙悟)

The glass bottles used in distilleries usually include transparent type and semitransparent type. The compositions of the glass bottles are commonly Na2O＋K2O 13.5 %-14.5 %, CaO 7.5 %-9.5 %, MgO 1.5 %-3 %, SiO270 %-73 % and Al2O3 2%-5 %. The chemical reaction of liquor body and some compositions of bottles （because liquor presents subacidity） would dissolve minute quantity of bottle compositions in liquor during bottle filling. Accordingly, the following rules should be followed during the selection of liquor bottles： Firstly, bottles containing no heavy metal ions which are harmful for peoples＇ health should be selected to avoid potential harm to consumers; secondly, bottles of good water resistance and chemical stability with high content of SiO2 and low content of Na2O should be selected; thirdly, the treatment of bottles by water before bottle filling could effectively reduce the effects of bottle on liquor quality.