jpender Senior Member Joined: 11 Jul 2011 Posts: 536 Location: California Expertise: I like coffee
Grinder: OE LIDO Vac Pot: S/S Moka Pot Drip: Aeropress
Posted Thu Dec 6, 2012, 11:11am Subject: Re: Coffee Brewing Method Absorption - A few notes
I'm assuming that LRR is defined in Mojo the same way as in the VST patent. If so, LRR = A + yield, and if A is constant then that's the equation of a line with slope=1. So you'd take your values for W-P, divide by C to get A (you could then combine data for different C), add the yield to these data, and then plot them against the yield.
In your tests, the variation in extraction itself is smaller than the measured variation in A. So if there is a proportional correlation with extraction you won't see it with a handful of runs.
Consider the middle case in your graph of extraction vs W-P. The values range from about 28 to 34 grams. That's a lot of scatter, something like ±3g. The effect of extraction on A (assuming a proportional effect) would be less than ±1g of water over the whole range.
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