1.定期清洗饮水机,家用饮水机每三个月清洗一次,公用饮水机每月清洗一次;2.根据饮用人数的多少选取不同容量的桶装水,最长的饮用期不要超过15天;3.购买桶装水时要特别注意包装桶是否晶莹透明,质感硬;4.查看包装桶表面的标签,需标注有生产地、生产日期、保质期、生产许可标准、各类物质含量以及“QS”质量安全标识等信 1. Regular cleaning of drinking fountains, household drinking fountains washed once every three months, public drinking fountains cleaned once a month; 2. According to the number of drinking different sizes of bottled water, the longest period of not more than 15 days; 3. When buying bottled water, pay special attention to whether the packaging barrel is crystal clear and hard. 4. Check the labels on the surface of the packaging barrel for the production area, production date, shelf life, production permission standard, QS "quality and safety identification letter