PinnedMy LinksA Compilation of Key Links — My Espresso Book: Engineering Better Espresso YouTube Latest Do Fines Clog the Filter in Espresso? Ending Pre-infusion based on TCF for Espresso The Illusive Donut in Espresso Shot Thermal Pre-Infusion: A Paradigm Shift in Understanding Espresso Espresso Experiments with Added Farts Blooming Espresso Profile Explorations Coffee Grinder Comparison: Molar Z vs Niche Where Laser Particle Analysis Went Wrong for CoffeeData Science13 min readData Science13 min read
PinnedRobert’s Collection of StoriesA directory of my articles by topic — This is a collection of collections of stories. I have stories on espresso, work, school, myself, my family, LEGO’s, and Photography. I hope this page helps navigating my list of stories. A Collection of Espresso Articles A Collection of Work and School Stories Personal Stories and Concerns LEGO Story Splash Page Photography Splash PageCoffee2 min readCoffee2 min read
PinnedA Collection of Espresso ArticlesA 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 OpinionsCoffee2 min readCoffee2 min read
1 day agoDo Fines Clog the Filter in Espresso?Gas Contributions to Espresso Shots — When discussing coffee extraction and any particle migration that may occur, there is often this question of coffee grounds clogging the filter screen. I wanted to better answer that question using spent coffee, a sifter, and some baking soda. I sifted some spent coffee, and I made a staccato shot…Coffee2 min readCoffee2 min read
4 days agoLast Zombie Standing: Episode 8A zombie eat zombie world — Synopsis: This story is about a zombie apocalypse from the viewpoint of Larry the zombie, and it focuses on Larry’s moral dilemma with being a zombie. Scene 9 Larry and his group of zombies trudged through the deserted streets, their decaying limbs dragging along the pavement. They had been wandering for days…Zombies4 min readZombies4 min read
5 days agoEnding Pre-infusion based on TCF for EspressoExplorations in blooming — I have used visual cues to understand when to end pre-infusion for espresso. Visual cues give a lot of information on how espresso extracts. The key cue is Time to Cover the Filter (TCF) which is when the coffee covers the filter. A typical bloom profile on the Decent Espresso…Coffee2 min readCoffee2 min read
May 23The Elusive Donut in Espresso ShotChasing a dream — I recently added baking soda to understand how CO2 impacted coffee extraction, and then I kept adding more because why not? I thought the videos were interesting though because they gave evidence to where some unevenness lies in my espresso extraction. The bubbles came out of the puck before the…Coffe2 min readCoffe2 min read
May 20Last Zombie Standing: Episode 7A zombie eat zombie world — Synopsis: This story is about a zombie apocalypse from the viewpoint of Larry the zombie, and it focuses on Larry’s moral dilemma with being a zombie. Scene 7 The group of survivors, led by John, had been on the road for weeks, moving through abandoned towns and cities, scavenging for supplies, and…Zombies4 min readZombies4 min read
May 19Thermal Pre-Infusion: A Paradigm Shift in Understanding EspressoSeparating water flow and heat flow — I have been looking at espresso from a different lens the past few months. This all started because my Decent Espresso (DE) machine greatly underperformed my Kim Express machine. Just let me to eventually creating the pump and dump profile for the DE, which evened out the competition. I was…Coffee7 min readCoffee7 min read
May 16Espresso Experiments with Added FartsCO2 from baking soda to better understand gas interactions in coffee extraction — Espresso extraction is inhibited by two factors: gas and solubles. To better understand espresso, I have been testing some coffee that is 3 to 6 months old, and it doesn’t have much CO2 remaining from roasting. …Coffee3 min readCoffee3 min read