The cutting edge of beer technology

Guinness drinkers who drink at home will be familiar with the little plastic ball that rattles around in the can after you crack it open and pour out a pint of dark creamy goodness. If you’ve ever wondered what that thing is for, wonder no longer. I’m not sure how I’d feel about it being replaced by a credit-card-sized piece of filter paper, though. Why wouldn’t it turn to mush and make my beer into a cellulose shake?

Bonus: this guy has made a collection of neat YouTube videos about all kinds of everyday technologies and how they work. Here’s one about pop can pull tabs that seems beer-applicable as well.

Cheers!

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