CT1 espresso machine by Wouter Strietman
Today, Wouter Strietman visited to see my LONDINIUM L1-P and he also showed me his progress in designing a standalone version of his espresso machine:
Lose Weight, Gain Volume: About Coffee Bean Density in Artisan
Roasting coffee beans, you want to be as consistent as you can, replicating a successful roast while collecting enough data (besides what you see, feel, smell and taste from the coffee) to get an idea what you may be doing wrong if the results are not so good all of a sudden. The Artisan software for coffee roasters has a feature to help you keep track of volume and density of your beans. Density is a word for the weight of a certain volume of beans and it can be measured in grams per liter. Your green beans are obviously more dense than the roasted beans: roasted beans have grown a lot in size and they have lost weight (moisture) in the process. In his new book “ The Coffee Roaster’s Companion ”, the famous Scott Rao explains these things: “Ideally, water should account for 10.5%-11.5% of green-coffee weight.” (p.3) “Coffee loses 12-24% of its weight during roasting, depending on initial moisture content, roast degree and inner-bean development during roasting. T...
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