What is Hop Top?
The Hop Top Beverage Preservation System was born out of the need to keep beer fresh for more than a few hours after first opening a newly filled growler. Since the product's inception, it has become clear that it is useful for so much more. In fact, any beverage can be carbonated and made into a tasty fizzy drink, and we think that's fun and enjoyable.
Furthermore, by replacing the CO2 cartridge with an argon cartridge, fine wine can be preserved much longer than before. And since more states are making growlers for wine legal, the prospects are very encouraging for all of us.
For a thorough description of the Hop Top and how it works, please refer to our Kickstarter project page. The campaign is now closed, but the project page is currently the best resource of information.