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Computing Brew Ratio and Measuring Water
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jaybar
Senior Member


Joined: 13 Sep 2011
Posts: 173
Location: Brooklyn
Expertise: Just starting

Posted Fri Jun 22, 2012, 11:11pm
Subject: Computing Brew Ratio and Measuring Water
 

Hi

A) How does one compute brew ratio?

Is it:

1) Coffee/Total Water used

or

2) Coffee/(Total Water Used-water absorbed by coffee)

B) How does one best measure water for pour-over (chemex)?

Do You:

1) Measure water before boiling.

or

2) Place chemex brewer on the scale with coffee, TARE to zero. Continue to pour until scale shows the desired amount.

Option 2 for measuring mater seems a bit more complex, as you have to continually check the scale. What are the advantages of this approach?

Thanks

Jay
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fwtechwiz
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Joined: 19 Feb 2010
Posts: 530
Location: Fort Wayne, IN
Expertise: I live coffee

Espresso: Gaggia Evolution
Grinder: Hario Skerton
Posted Sat Jun 23, 2012, 3:18am
Subject: Re: Computing Brew Ratio and Measuring Water
 

I always thought brew ratio was calculated after the fact, gram weight of ground coffee used (before brewing) divided by gram weight of coffee brewed.
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Netphilosopher
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Joined: 14 Jan 2011
Posts: 1,602
Location: USA
Expertise: Just starting

Posted Sat Jun 23, 2012, 10:58am
Subject: .
 

...
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Java_Jiver
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Java_Jiver
Joined: 3 Nov 2010
Posts: 134
Location: Baton Rouge
Expertise: I love coffee

Grinder: Capresso Infinity
Drip: Technivorm 741
Posted Mon Jun 25, 2012, 11:38am
Subject: Re: Computing Brew Ratio and Measuring Water
 

I've followed a ratio similar to Netphilosopher's for years almost to the point that brewing the morning coffee for my wife and me is a rote, mechanical process. I don't always adjust the amount of coffee beans to get right on to 60 grams, if my measure comes out to 61 or 62, that's OK. My drip coffee maker has markings on it that can measure out to exactly 1 liter, so I aim for that mark, so we use slightly more than 57.5 as specified. We get excellent coffee using this process every morning without the hassle of weighing out the water.
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IMAWriter
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IMAWriter
Joined: 4 Jul 2002
Posts: 5,891
Location: Brentwood, TN
Expertise: I live coffee

Espresso: Bezzera Strega
Grinder: Forte, OE Pharos,...
Vac Pot: Adcraft SS, Yama 8 cup
Drip: Brazen, Kalita, Chemex,...
Roaster: Behmor 1600+, CO/UFO combo
Posted Mon Jun 25, 2012, 11:46am
Subject: Re: Computing Brew Ratio and Measuring Water
 

jaybar Said:

Hi

A) How does one compute brew ratio?

Is it:

1) Coffee/Total Water used

or

2) Coffee/(Total Water Used-water absorbed by coffee)

B) How does one best measure water for pour-over (chemex)?

Do You:

1) Measure water before boiling.

or

2) Place chemex brewer on the scale with coffee, TARE to zero. Continue to pour until scale shows the desired amount.

Option 2 for measuring mater seems a bit more complex, as you have to continually check the scale. What are the advantages of this approach?

Thanks

Jay

Posted June 22, 2012 link

Correct our not, I lean to #2, especially when doing smaller amounts such as a Hario 2 cup (10oz yield of brewed coffee starting with 12oz for heated water, 18 grams of just finer than drip grind coffee) YMMV.
Of course, regardless of brewing method, remember to thoroughly rinse your filter with a good amount of hot water before depositing the coffee in your paper filter.

 
Rob J (LMWDP #187)
My Music Production web site:
www.robertjason.com
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