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Coffee Sludge.... Good or Bad?

This is a discussion on Coffee Sludge.... Good or Bad? within the Coffee Drinks forums, part of the Coffee Addicts category; Originally Posted by VerS Both my wife and I usually enjoy the final quarter mug of properly prepared french press coffee the most, because a ...

  1. #11
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    Quote Originally Posted by VerS View Post
    Both my wife and I usually enjoy the final quarter mug of properly prepared french press coffee the most, because a small swirl of the mug suspends the small amount of very fine sludge and produces produces a delicious smooth buttery taste and mouth feel.
    I use a preheated, double walled ceramic mug, and I think that is important to keep the last coffee at a temperature that I enjoy the flavor of.

    In the past I used an inexpensive flat burr grinder and very briefly a blade grinder. Even the burr grinder did not give me that same delicious taste that the Bodum Bistro conical burr grinder that I now use does. I expect it was to much larger sludge and over extraction of the additional fines.
    So for you coffee sludge is better if it's the same consistency as butter. So you like coffee sludge, but only if it isn't chunky?

    Most of the sludge I get isn't really fine, it's sort of a mix with small chunks in it, I don't think I have ever seen completely smooth coffee sludge before... IE 100% smooth with no chunks whatsoever.

    Do you always drink the sludge?

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  3. #12
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    Quote Originally Posted by MyMugsHalfFull View Post
    So for you coffee sludge is better if it's the same consistency as butter. So you like coffee sludge, but only if it isn't chunky?

    Most of the sludge I get isn't really fine, it's sort of a mix with small chunks in it, I don't think I have ever seen completely smooth coffee sludge before... IE 100% smooth with no chunks whatsoever.

    Do you always drink the sludge?
    I enjoy the "buttery taste" of a relatively small amount of sludge when a swirl suspends those very fine solids in the liquid.
    I do not like chunky sludge. I never have chunks in my sludge at home. The only time I can remember having a couple chunks in my sludge in the last six months was when travelling and using my Bodum travel press. I accidently overfilled the mug and a couple particles slipped by the double ridged silicone edge of the filter.
    The small amount of sludge in coffee made with an Espro press from Vancouver contains only extremely fine particles. This press uses a two stage basket filter with the filter size being 10 to 16 times finer than other presses. It also uses a double ridged silicone gasket edge on the filter assembly to prevent particles slipping by.
    The type of grinder will also have an impact on sludge which makes it through a standard Bodum sized filter. The best grinders for French press produce the smallest possible amount of particles that are not the desired coarse size. Unfortunately the cheapest grinders (blade grinders) do the poorest job because each particle is struck a random number of times and the sizes end up from fine coffee dust all the way up to the desired coarse size.
    When I'm drinking French press coffee properly prepared on good equipment, the small amount of very fine sludge stays suspended in the liquid after a swirl and I always drink it (if it hasn't gotten to cold) because it is my favourite part of the cup.

  4. #13
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    Ah ok. I see. Do you ever use the sludge for other things? Like I was testing out different things, like coffee ice cream (turned out pretty darned good). I was actually tempted to try out some other recipes as well. I was thinking maybe cookies next... Or maybe some form of pastry. I haven't seen too many coffee sludge recipes though. Been looking online, they have coffee recipes, but none that really use the sludge, or well, not many that I have found.

  5. #14
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    The only other thing that I have done with coffee sludge was to add it to hot chocolate, and that was good.
    Your good results have me interested in other options since I do enjoy coffee flavored ice cream, yogurt and baked goods that I have purchased.

  6. #15
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    Quote Originally Posted by VerS View Post
    The only other thing that I have done with coffee sludge was to add it to hot chocolate, and that was good.
    Your good results have me interested in other options since I do enjoy coffee flavored ice cream, yogurt and baked goods that I have purchased.
    Of COURSE! *slaps forehead* How could I have overlooked something as simple as yogurt? I'm going to go make a batch now... lol..

    I was attempting a coffee cake, but it turned out really really nasty It was the same color as fudge brownies but did not taste at all like coffee cake I have tried around town. I guess my first clue was it looked like brownies lol....

  7. #16
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    I like coffee and coffee is not bad for health i take 5 or 6 cups of coffee in a day.When I pour
    from my press I always slosh the coffee around to try and pick up more sludge.

  8. #17
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    I find that coffee sludge is only good from a dark roast though. It does give a nice full bodied finish to the coffee. With a mild/medium roast the sludge is too tangy and acidic to be any good. I'll try the ice cream out. Do you think coconut milk would make ice cream the same as cream/milk would? The fat content of coconut milk is about twice what whole milk is... so kind of like a light cream

  9. #18
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    You know... Nobody has really gone here yet, and don't throw the tomatoes because I do... Just playing devils advocate...

    What about the sludge from instant coffee? Do you think that is still as good? Oh, and you don't think there can be sludge?

    Have someone make instant coffee in a coffee maker!

    So.. How about it... Instant coffee sludge is still coffee sludge... Would you use it?

  10. #19
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    Does instant coffee make sludge?

    You can always try making your own sludge by taking a little bit of instant coffee and mixing it with a little hot water and then tasting it.

    I don't know if you can make instant coffee in a coffee maker. The stirring motion when you mix the coffee granuals in the cup with the hot water is what dissolves the dehydrated coffee granuals. The hot water going through the granuals in the brew basket wouldn't be enough saturation to dissolve the granuals. Of course, you can always try that too and let us know what happens.

    Rose

  11. #20
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    Quote Originally Posted by PinkRose View Post
    Does instant coffee make sludge?

    You can always try making your own sludge by taking a little bit of instant coffee and mixing it with a little hot water and then tasting it.

    I don't know if you can make instant coffee in a coffee maker. The stirring motion when you mix the coffee granuals in the cup with the hot water is what dissolves the dehydrated coffee granuals. The hot water going through the granuals in the brew basket wouldn't be enough saturation to dissolve the granuals. Of course, you can always try that too and let us know what happens.

    Rose
    What happens is something akin to "coffee tea".....

    Watery, Watery Coffee, that has the same consistency of tea, and then of course, after you have used it 3 or 4 times... It gets nasty.. Don't ask.. You really don't want to know how I know that...

 

 
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