Londinium video Black / White

-

Reacties

Een reactie posten

Populaire posts van deze blog

Lose Weight, Gain Volume: About Coffee Bean Density in Artisan

-
Afbeelding
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...
Meer lezen

Tiny Cheap Fluid Bed Roaster by Tije and Jan

-
Afbeelding
(also see Daily Coffee News feature ) Tije designed and made the following structure for a tiny and cheap fluid bed roaster, to which Jan van der Weel added the Arduino parts, electronics and programming: Sketch by Tije de Jong Jan sourced a very cheap blower (€ 11) to start with, Tije developed and constructed the mechanics, Jan built together and programmed the TC4 / SSR electronics.  On his blog, Jan will specify exactly how the TC4 part is combined and programmed and I will copy these details into this blog entry, just as Jan will use this video in his blog. We did a few test roasts to make sure it works at all and it does. Towards the end, the first roast tended to get a flat BT line and airflow was slightly decreased. 200g seems max load of green beans. Second roast a little more power was given to the heater. Next we will try the Background Roast driven by the PID software of Artisan. A week later, with updated software that works better to change the...
Meer lezen

Rocket espresso service & upgrade

-
Afbeelding
Peter van der Weerd fom KAFKO gave my Rocket Giotto a cleanup and upgrade. It was a great chance to see the intricacies of the E61 brew group inside out and to see some of the details and little tricks one should remember when doing it oneself. Peter encourages people learning about these basic service procedures and when he sends out a set of all necessary parts, he includes a diagram and some instructions. Plus his phone number, because he is available for advice in case someone is surrounded by parts and doesn't know what to do next... What we (well actually he) did: E61 Cleanup, changing seals, removing scale Vibration pump replacement (newer one less noisy), new metal connection Anti-vac upgrade, startup release of water/steam out the front panel now Boiler insulation removed (better looking, better cup heating) Below, lots of pictures telling the story and some brief comments. There's other web pages with extensive info on the E61, like this excellent page (th...
Meer lezen