World's Most Technical Carbonation Saver — Episode 2: The Fizz Strikes Back

I confess.

I've spent at least 10 hours trying — without success — to understand exactly how this device works.

I even had my crack research team take a break from their deep web exploration activities to work with me on figuring it out.

Some might say that's a fool's errand.

But we have no room for haters here.

Anyway, still no luck.

It would appear I'm gonna have to pay the piper and order some and hope maybe hands-on will help the penny drop.

Don't hold your breath.

The m.o. of the iteration featured nearly two years ago in Episode 1 was obvious on its surface.

I'm just saying, is all.

From the 2008 version's website:
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Quik Top® Can-Cap

Reseal canned carbonated beverages by trapping carbonation in an airtight sealed chamber so the delicious fizz stays fresh for days.

Features a cap that doubles as a cup

or coaster, a bottle top for pouring and drinking ease, a filter with room for a straw that keeps insects out and a sturdy loop for hands-free transport.

3-1/4 x 3 x 1-1/2".

Dishwasher safe.

Polypropylene.

Reusable.
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A matching set of 4 costs $14.98.