Little Fluid Bed Roaster update 24 Feb 2018
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| (the blower looks much like this -- a photo sent to us by Sergey -- I don't have the exact type specs here) |
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...
Reacties
What is the blower that you used in this version, that shinny little thing? 😁
My progress is slow, really got nothing to show for yet 🙁
Thank you for sharing this blog!
Alex
I actually looked at some of these at a shop and they look kind of big. I was told these have both in and out. What do you do with the in?
Cheers!
Air from the motor into the roaster
I learned that these are called Roots blower and they all have intakes because that's what's get compressed.
Thanks again.