Are glass bottles cheaper than plastic?

The cost of glass bottles is high because the cost of plastic bottles is lower than that of glass bottles. Because the plastic bottle is simple and easy to make higher, but the glass bottle is different. Glass products are more complicated, and the price of plastic bottles is very low. 

Plastic bottles account for about 20% of the production cost in the product (commodity) price composition, while glass bottles are extremely low in terms of production or recycling cost accounting, accounting for about 3-5% of the product (commodity) price composition. Therefore, it is the most economical method to replace plastic bottles with glass bottles.