Pfunk Senior Member 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.
GlennV Senior Member 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.
rhodes553 Senior Member 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!
Bbahia Senior Member 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
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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