Why is the quality of many food bags on the market so fragile?

When purchasing food bags, we will find that many prices on the market are different. Some food bags that are relatively cheap are not durable, and then they may be easily damaged when they are used. Why does this happen? 

With the continuous development of current technology and the continued popularity of degradable food bags, many food bags now use degradable food bags. Therefore, degradable food bags provide favorable conditions for environmental protection. 

There are many cheap food bags on the market now, and the poor-quality food bags are very likely to be some relatively high-quality food bags, but their shelf life has passed. Food bags have a certain quality shelf life. If the quality shelf life expires, the quality of degradable food bags will be seriously affected.