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joepfohl
Senior Member


Joined: 29 Sep 2004
Posts: 209
Location: Rochester, NY
Expertise: I love coffee

Grinder: Solis Maestro
Drip: Bodum+BonJour FP, Melitta...
Roaster: Fresh Roast Plus 8, Cast...
Posted Sun Apr 27, 2014, 6:12pm
Subject: Water Retention
 

I'm trying to figure out about how many grams of water each gram of ground coffee will retain after brewing is complete.  I've done a little reading and a little math (I know... dangerous combination) and came up with something around 40-45 grams water per 20 grams ground coffee.  Sound about right?

- j o e p f o h l
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rasqual
Senior Member
rasqual
Joined: 29 Jun 2005
Posts: 1,071
Location: Chicago area
Expertise: I love coffee

Espresso: *$ Barista, non-pressurized
Grinder: SMP
Vac Pot: Yama, Aeropress
Drip: Porcelain Melitta 103, Hario
Roaster: "ring roaster", mod popper
Posted Sun Apr 27, 2014, 9:48pm
Subject: Re: Water Retention
 

Yeah, about double. With an Aeropress, a lot less.
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joepfohl
Senior Member


Joined: 29 Sep 2004
Posts: 209
Location: Rochester, NY
Expertise: I love coffee

Grinder: Solis Maestro
Drip: Bodum+BonJour FP, Melitta...
Roaster: Fresh Roast Plus 8, Cast...
Posted Mon Apr 28, 2014, 3:36am
Subject: Re: Water Retention
 

I figured as much.  Don't have an Aeropress (yet).  Thanks.

 
"Mmm...Coffee!"
    -adapted quote by Homer Simpson

j o e p f o h l
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squaremile
Senior Member


Joined: 6 Jan 2011
Posts: 86
Location: Portlandia
Expertise: Just starting

Posted Fri May 2, 2014, 7:32am
Subject: Re: Water Retention
 

It's easy to figure out. Just weigh your water going in, then the beverage weight in the cup. The difference is the liquid retained, then divide by grams of ground coffee to get the per gram ratio. I've found it to vary a bit by coffee, but usually between 1.5 and 1.75.
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Buckley
Senior Member


Joined: 25 Jan 2011
Posts: 423
Location: Internet
Expertise: I love coffee

Posted Fri May 2, 2014, 8:28am
Subject: Re: Water Retention
 

And different roasts and different grinds will have slightly different water retention.  One value, once you have found it, will not 'fit all'.  Depends upon how OCD you wish to be.
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