Three meals a day are inseparable from the use of salad oil. It can add deliciousness to our food, but how much do we know about salad oil bottle caps? In fact, the material of salad oil bottle caps is mainly made of polyethylene PE Polymer is one of the commonly used polymers in life and is widely used in various industries.

Careful friends will find an inner cap when they open the cap of the salad oil bottle. In fact, this inner cap is to increase the sealing of the contents of the container. If you compare the price of a single outer cap seal, the use and sealing effect will be better. It is not necessarily good. There are also various types of salad oils on the market, because the corresponding bottle cap styles are also various. Different salad oil bottle caps have different bottle caps. This is what merchants are doing on them. Depending on the customization, there will be different ways to open it; but the general way to open it is to put your finger through the ring and then pull back to open the bottle cap; however, it does not rule out that the pull ring is broken. In this case, you can use a sharp object or chopsticks to poke it open.