1. Advantages and disadvantages of plastic baby bottles 1.1 Advantages Plastic baby bottles are light in weight, not easily broken, easy to use, and relatively low in price. 1.2 Disadvantages Plastic bottles may contain harmful substances, such as bisphenol A (BPA), which is a potential risk to the baby\’s health. In addition, plastic bottles are easily scratched and deformed, making them difficult to clean. 2. Advantages and disadvantages of glass feeding bottles 2.1 Advantages Glass feeding bottles do not contain harmful substances, are easy to clean and disinfect, and can be used for a long time. In addition, the glass material will not affect the taste of the pacifier. 2.2 Disadvantages: Glass milk bottles are heavier.