Half a croissant, on a plate, with a sign in front of it saying '50c'
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DE Coffee Filter

Grit-free coffee
  [vote for,

Even a good burr grinder can sometimes leave small particles of coffee that slip through the screen of my French press, giving the coffee a bit of a grainy texture or an over-brewed flavor. Proposed is a coffee maker that uses diatomaceous earth to filter out the ground coffee, just as a pool filter does. This would produce extremely clear coffee with no paper taste, and the filter would be back-flushable.
kevinthenerd, May 24 2017

How I make my coffee https://youtu.be/fEjgbvtPPNw
[Ian Tindale, May 25 2017]


       I wonder which components of the coffee would make it through a carbon filter? You could simply use an absolute aperture filter like those used for filtering drinking water - they come in different sizes and you could play around until you found the right size.
Custardguts, May 24 2017

       Ah yes, the old No.4 Coffee Machine. Gotta backflush every 3k gallons or so, of course.
FlyingToaster, May 24 2017

       Instant granules are pretty grit-free
pocmloc, May 24 2017

       Better than a DG coffee filter.   

       Decomposed Granite
popbottle, May 25 2017

       Depleted uranium. I like mine with a bit of zing.
RayfordSteele, May 25 2017


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