Lightweighting and the use of recycled polyethylene terephthalate can be somewhat trickier with carbonated beverages, since both impact shelf life and carbonation retention.

• 轻量化和循环利用聚对苯二甲酸乙二醇酯可有点麻烦与碳酸饮料，因为这两个影响货架寿命和碳化保留。