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Have you ever imagined a Beer with two seals? This is the latest invention from a Japanese brewery that promises to reduce the amount of foam in beer glasses!
The proposal for a new design for beer cans came after some studies on the formation of bubbles. Find out all about this news below!
How is foam formed?
The gas contained in the beer is created by the fermentation process of the yeasts. However, beer foam is caused by the pressure change in the can and by the friction of the beer when it is poured into a container.
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While a hallmark of beers, excess foam is undesirable to consumers as it affects the taste of the beverage.
It was found that the main factor for foam increase is the closure, which causes the pressure inside the can to change drastically when the can is pulled and the resistance increases significantly when the contents are poured through the narrow opening. foaming.
This is how the new can with two seals works
To avoid this problem, the proposal of two seals changes the dynamics of opening and pouring the beer into a glass.
Therefore, the seals must be opened at different times, creating a kind of domino effect and avoiding the formation of foam.
The first closure opens a small flap on the can, releasing much of the pressure and creating the beer’s signature foam. Simply rotate the can in a glass until you reach the desired amount of foam.
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The second seal must then be opened. This seal creates a larger opening in the can, increasing beer flow and reducing liquid resistance. This will stop foaming.
This way the beer glass contains the ideal amount of liquid and foam, about 7 parts beer to 3 parts foam. For beers with only one seal, it’s common for half to be beer and the other to be foam, which isn’t interesting at all.
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