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When I throw out wet coffee grounds, I feel gypped out of the
last half cup of coffee. Proposed is a small centrifuge for
kitchen or desktop use to squeeze the last drop of coffee out
of the used grounds.
Centrifugal Coffee Maker
http://www.google.com/patents/US4962693
Does this thing look a bit overcomplicated? I think I can do better. [DIYMatt, Aug 26 2012]
[link]
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You need an espresso machine. The grounds are usually almost dry afterwards. |
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This would gain a bun if it were a steampunk
brass and mahogany contraption powered by
a reciprocating steam engine driven. |
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If you throw them out in a compost bin, you will gain another purpose for their use. |
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Doesn't a french press do this to some extent already? |
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I suspect the key limitation would be filter cost, which would have to be more robust. |
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If the centrifuge vessel is a narrow cone with
the axis of the centrifuge normal to the wide
end, then the liquid will be concentrated in
the tip of the cone. When the valve is opened,
the accumulated liquid will drain out under
gravity into a filter. |
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Following on from DIYMatt's suggestion about the
espresso concept - I've recently been using one of
those early manually assembled versions where
you fill the bottom chamber with water, put the
coffee in a sort of perforated spout, and then
screw the chamber on the top into which the
coffee eventually emerges. |
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The other day, looking for a change, and a bit of
an experiment, I ground up some loose-leaf green
tea and packed the machine with a payload of
that. I like green tea, it's gentle and subtle and it
invigorates you in a refreshing and clean and
pleasant way. Espresso-style is quite a different
deal all together, if normal green tea is a wise old
monk gently imparting motes of wisdom, then
espresso green-tea is that same monk but
morphed into a hi-octane fuelled drag-racing
bulldozer roller death machine punching a series
of caffeinated bullet-points directly into your
skull. |
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While shredding hot licks on an electric shakuhachi, [zt]. |
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You could package the still slightly usable grounds under
the name of Has Beans. |
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//surely there's something to be said for adding a centrifuge to an espresso machine ?// |
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I've always thought the same thing, but I haven't posted it because it is at least half baked. Just now I found a patent for one which has, of course, never actually been produced. It is slightly different though. In fact I'm going to go post my idea now since it is very specific. |
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