A grouping of sub-groups of coffee related writings — This is a collection of collections of my articles on different topics, each with their own splash page. Improving Espresso A Summary of the Staccato Lifestyle Measuring Coffee Grind Distribution Fines Migration in Espresso Coffee Extraction Coffee Roasting Coffee Beans Paper Filters for Espresso Espresso Baskets and Related Topics Espresso Opinions

Coffee Analysis by extraction, particle distribution, and shape — A few months ago, Zerno sent me a grinder because they liked what I did on analyzing coffee. They also sent me two extra sets of burrs. There are a lot of data collection options, so I decided to start with a small test across burrs and grind settings to…

Short study using Omni for Coffee Grounds Color — I was curious to use the Omni on sifted coffee to analyze color as I like to make staccato espresso shots. The coffee bean is not homogenous, and I enjoy exploring the different ways to understand this idea. First, I sifted the coffee using a Fellow Shimmy for < 300…

Quantifying color — DiFluid released the Omni a few months ago, and they sent me one to play around with. It can measure both particle distribution and coffee color, specifically Agtron. This is a standard color measurement for roasters to quantify how dark a roast is, but the common tools are over a…

A necessary dependency — The hope for many creators is to have credibility but not to be considered biased. Some do this by not receiving free stuff for reviews and funding through crowd funding, but I still think a bias still exists. I don’t think bias is necessarily a problem, but we should talk…

Does It Matter? — My primary filter basket is the Wafo Spirit, but over a few weeks, this basket will clog. While I should do better at cleaning it once a week, I was provided an opportunity to understand how this clogging could effect the shot. …

Some data on a classic espresso machine — I borrowed a Gaggia Classic from my brother-in-law, and I pulled some shots to better understand the machine. I generally have thought the machine is a good starter machine for espresso, but then I dove deeper into the grouphead. The Grouphead First, let’s talk about the grouphead. I think it is not…

Revolutionary for the price? — DiFluid has come out with the Omni which analyzes particle distribution and coffee color. They sent me one to analyze, and I have done a few tests (see the very end for more comment). The first two sets of tests are just to understand the repeatability of the device for…

And more insights into the water column in coffee — This exploration did not intend to go as far as it did, but here we are. I explored adding a silicon ring on top of my puck. I found through some experimentation (on this test coffee) that a silicon ring reduced side channeling and increased extraction efficiency. I also found…