What do you get when you cross an ice cream machine and beer? Japanese beer brewer Kirin came up with this idea to keep your ice-cold brew stay cold longer: beer with frozen foam.
The variant, called “Ichiban Shibori Frozen Draft,” features cold Kirin beer topped with frozen beer foam created using a process called Frozen Agitation, wherein air is blown into the beer as it is stirred and chilled.
The foam is very cold at -5 degrees celcius, which, according to Kirin, can help keep the beer below it ice-cold for roughly thirty minutes.
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