Re: 29c coffee drippers...

...cuz enquiring minds want to know.

We are familiar, right, with the big 6-cup drip cones that rest atop coffee pots?

We are perhaps also familiar with the small 1 or 2-cup drip cones that rest atop coffee mugs?

And their form is that of a modified, slightly flattened, cone with a small aperture in the bottom, arising out of a kind of plate that is broader than the opening of the pot or mug, right?

and into the cone portion, you put a paper filter in the appropriate size, or perhaps a so-called "permanent" filter made of very very fine metal screening?

OK! Now imagine the mug-sized filter in a modified shape. Out of the base plate rises a narrow cylinder, oh maybe an inch in diameter and an inch and a half tall, open at the bottom. The top of the cylinder flares into a cone. Inside, where cylinder and cone meet, there is a fine plastic grating of very narrow parallel slots (it doesn't remove).
And there is a second piece to the whole apparatus -- a removable cylinder just slightly smaller than the one mentioned above; it too has a fine grating at one end.

The coffee grounds go into this smaller cylinder. It is then inserted into the base cylinder and twisted so as to "latch" (a Tab A, Slot B arrangement).

Water goes in the top of the cone. It drips through the grating in the cone, permeates the coffee grounds, and drips out -- quite slowly -- through the grating at the bottom of the cylinder.

Coffee is slower than with a disposable filter, and, depending upon calibre of grind, can be a bit muddy. But nothing is thrown away, except the coffee grounds (and they go in the compost).

OK OK, I'll take a picture. But not right away. And now, back to the sermon.