酷暑时节,烈日炎炎,喝一杯可乐会使人神清气爽。在旋开瓶盖的一刹那,随着“呲”的一声,硬邦邦的可乐瓶子一下子变软了,同时还有大量气泡不断涌出。为什么装有可乐的塑料瓶会变软?这些气泡的成分又是什么呢?让我们先来看看可乐的标签吧。“配料:水、果葡糖浆、白砂糖、食品添加剂(二氧化碳、焦糖色、磷酸、咖啡因)、食用香精。保存方法:禁止加热或0℃以下冷冻、避免阳光直晒及高温。”原来,可乐的主要成分是水和 Summer season, the hot sun, drink a glass of coke will make people refreshed. In the moment of unscrewing the bottle cap, with the barking, the stiff cola bottle softened all at once, and at the same time a large number of bubbles continued to pour out. Why cola plastic bottles will be softened? What is the composition of these bubbles? Let us look at the Coke label it. Ingredients: water, fructose syrup, sugar, food additives (carbon dioxide, caramel, phosphoric acid, caffeine), food flavors Save method: Prohibition of heating or freezing below 0 ℃, to avoid direct sunlight and high temperatures. It turned out that cola’s main ingredient is water and