A bottle cap is a device used to close or seal a container such as a bottle, jug, jar, tube, or jar. The main types of bottle caps include: rotary bottle caps, crown bottle caps, flip-top bottle caps, cork stoppers, etc.

As the use of bottle caps continues to increase, ordinary bottle caps can be used to seal beverages without carbonated gas such as mineral water, tea, and juice. However, higher requirements are required for the sealing of some soda and other beverage containers containing carbonic acid gas.

In order to prevent the carbonic acid gas inside the container from leaking out quickly, the internal carbonic acid gas and the internal bottle pressure must be maintained. This requires the aluminum bottle cap material has a good sealing performance and a certain strength.

In the field of food and beverages with abundant products, bottle caps are a product that is easily overlooked by us. 

Although the bottle cap is small, it plays an important role in food and beverages. It not only makes the product easier to carry and avoids direct contact with the outside air, but also acts as a "delicious guardian" in the field of "happy water" - making Carbonic acid gas has nowhere to escape!