HomeRoast Digest


Topic: OK... newby's question #3 (4 msgs / 96 lines)
1) From: john roberts
Got in my burr grinder... yup.. got 17 positions... being a manly man I
assume I should go for the finest grind appropriate (old Bunn w/paper filter
so I'm 3.5-4).
First impression (actually second and third)... the grinding step really
smells noticeably more fragrant... OK onto the brew,,,  ho hum...  perhaps I
had unrealistic expectations but I can't say it's any better than my old
Krups blade grinder (actually one of the tangs broke off about 10 years ago
so it's not completely stock). Not even sure it's better at all.
To (finally) put this in the form of a question... what is the calculus for
selecting how fine to grind? The engineer in me says, finer grind, more
surface area, more flavor extraction..... as long as there's no sediment or
other issues fine is fine, right?
JR
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2) From: Ben Treichel
Depends on the grinder. It sounds like an espresso grind @ 3 to 4, and  
that would cause over extraction in a drip machine. Its always a balance 
of time vs fineness of grind.
john roberts wrote:
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3) From: miKe mcKoffee
From: "john roberts" 
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Simply put the finer the grind the shorter the time needed for optimum
extraction. Of course, this presupposes the brewing method used can vary the
extraction time in order to not over extract. Drip cannot as far as I know.
Too fine a grind with a too long extraction time equals bitter over
extracted coffee. It's a balancing act.
Fineness of grind is only one factor. Evenness of grind is equally important
for even extraction. Else a brew of mixed over, under, and properly
extracted. Regardless the brewing method even grinding and the proper grind
can improve the cup. Cheap burr grinders do not equal even grind BTW. Not
even necessarily more even than a whirly chopper...
With paper filters sediment is a mute point. Paper taste and paper soaking
up and filtering out coffee oil essentials yes, sediment no. As you may
surmise I quit using paper filters many years ago:-)
MM;-)
FrankenFormer Rosto Roastin' - Royally Balance Brewin'
Rocky grindin' - Miss Silvia brewin' too!
PNW HomeRoast List Gathering Info' URLhttp://home.attbi.com/~mdmint/coffee/pnwhrg.htm

4) From: TerryF
I have to agree with Ben. A grind that is too fine will produce over
extracted coffee and a bitter taste in the cup. I use a Bunn and I'm really
surprised the filter didn't overflow. Maybe you only made a partial pot?
Try setting the grinder in the middle or middle-high range and see if the
coffee has a sweeter, more mellow flavor. If this helps you can tweak the
grind from there.
TerryF
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