In this post, I discuss issues and possible avenues for grinding finer for filter coffee
In this post, I explore the details of physical phenomena that can cause fines to migrate and clog coffee filters.
This post is a detailed discussion of the effects of coffee grinder seasoning on particle size distributions.
I often heard worries in the coffee community about a difference of quality in the coffee grind size distribution when grinding with a full hopper versus a single dose of coffee in an otherwise empty hopper. The idea behind this is that coffee beans forced through the rotating grinder burrs have no choice but toContinue reading “Grind Quality and the Popcorning Effect”
[Edit April 20 2021: Chris Satterlee generously developed install packages for both OS X and Windows here ! I’m very thankful for this help (it’s not straightforward at all to do this).] [Edit April 25 2019: Please note this is not an iPhone or Android app, and I have no plans to release it asContinue reading “An App to Measure your Coffee Grind Size Distribution”
In a recent post, I presented a mathematical model for the dynamics of coffee extraction that is based on a few simple hypotheses. One of these is that the rate of extraction decreases exponentially. The rate at which it decreases can depend on many things: the type of coffee, the roast, the amount of agitationContinue reading “Testing a Model of Extraction Dynamics”
[Edit January 30, 2019: After receiving some feedback about this post, I would like to address a few things that I think were not clear enough. I’d like to thank Scott Rao for his comments. First, when I use language such as “over-extraction”, and “under-extraction”, I don’t mean that the associated extraction numbers are necessarilyContinue reading “The Dynamics of Coffee Extraction”
Recently, Barista Hustle posted a very interesting video on YouTube. I am embedding it to this blog post to make sure that you view it before reading more. I found this video rather illuminating, but at first the last minute or so was a bit confusing to me, so I decided it may be worthContinue reading “Extracting Shells of Coffee”