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Pfunk
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Joined: 20 Jan 2002
Posts: 34
Location: So Cal
Expertise: I love coffee

Posted Wed Dec 5, 2012, 4:51pm
Subject: Extractmojo alternatives?
 

Are there more affordable alternatives to extractmojo out there for those who want to test their coffee extraction at home?  I'm interested in testing to dial in my technique and grind with various brew methods but I can't justify the $500 price tag for this purpose.

I got a cheapo Brix handheld refractometer but it's a bit of a pain to use and readings seem to be inaccurate to me.
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GlennV
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Joined: 27 Oct 2011
Posts: 29
Location: UK
Expertise: I love coffee

Posted Wed Dec 5, 2012, 5:15pm
Subject: Re: Extractmojo alternatives?
 

I don't think there are, I'm afraid. The cheaper Brix handhelds, both analogue and digital, are well below the accuracy required to give anything remotely useful for coffee (and I have tried both). The vst units really are way ahead of anything else in the same price range in terms of accuracy - and you need every bit of that accuracy to get useful results.
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Netphilosopher
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Joined: 14 Jan 2011
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Location: USA
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Posted Thu Dec 6, 2012, 5:12am
Subject: .
 

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Pfunk
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Joined: 20 Jan 2002
Posts: 34
Location: So Cal
Expertise: I love coffee

Posted Fri Dec 7, 2012, 3:16pm
Subject: Re: Extractmojo alternatives?
 

Hmmm, looks like I'll have to save up for the real deal.  It would be a cool gadget to have for sure but I think $500 would be better spent on a new roaster.

In the meantime I think I need to do some brewing experiments to learn how to taste under extraction vs over extraction, sour vs bitter.
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rhodes553
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Joined: 24 Feb 2005
Posts: 9
Location: Brooklyn, NY
Expertise: I love coffee

Espresso: Moka Pot
Grinder: Solis Maestro Plus
Drip: Melitta Pour-Over
Roaster: D'Amico Foods, Brooklyn
Posted Wed Feb 27, 2013, 6:39pm
Subject: Re: Extractmojo alternatives?
 

So I bit the bullet and ordered one of the VST Lab Coffee II refractometers yesterday. I've been using the MoJoToGo iPhone app for the last few weeks to guide my brewing ratios but the frustration of not being able to measure the resulting TDS finally drove me to order the device. For now, I've got a spreadsheet I'll be using to track and calculate TDS, extraction, LRR, CBR, etc. The device arrives tomorrow -- I can't wait!
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Bbahia
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Bbahia
Joined: 18 Nov 2013
Posts: 1
Location: Strasbourg
Expertise: Just starting

Posted Mon Nov 18, 2013, 7:06am
Subject: Re: Extractmojo alternatives?
 

Hi rhodes553
I just bought a VST lab coffee and the datas i'm getting are bizarre.
For example:
i use 5.6g of ground coffee to get 42g (or ml) of espresso beverage and when i test it, the refractometer displays 2.6 are the datas right?
Can you please tell me what is LLR and the difference between LLR-Drip, LLR immerson and LLR espresso.
Thank you
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squaremile
Senior Member


Joined: 6 Jan 2011
Posts: 83
Location: Portlandia
Expertise: Just starting

Posted Tue Nov 19, 2013, 12:46am
Subject: Re: Extractmojo alternatives?
 

Hey, just email the VST people, they will tell you. Plus make sure you read the manual, it's got tons of info.
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jpender
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jpender
Joined: 11 Jul 2011
Posts: 699
Location: California
Expertise: I like coffee

Grinder: OE LIDO
Vac Pot: S/S Moka Pot
Drip: Aeropress
Posted Tue Nov 19, 2013, 10:32am
Subject: Re: Extractmojo alternatives?
 

Bbahia Said:

i use 5.6g of ground coffee to get 42g (or ml) of espresso beverage and when i test it, the refractometer displays 2.6 are the datas right?

Posted November 18, 2013 link

That sounds right.

Bbahia Said:

Can you please tell me what is LLR and the difference between LLR-Drip, LLR immerson and LLR espresso.

Posted November 18, 2013 link

I don't have the user manual but my understanding is that those terms refer to the ratio of the weight of liquid retained in the grounds to the weight of the dose for those three classes of brewing methods.
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