Tije de Jong made a first housing for the Tiny Cheap Fluid Bed Roaster. He also made a part that improves the movement of coffee beans inside the roast chamber. This improvement is not finished yet but it already makes a slightly larger batch size possible (310 vs 250 grams). Tije also made an addition to the chaff collector that prevents beans from escaping out …
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Tiny Cheap Fluid Bed Roaster: New roasting chamber
Tije built a new roast chamber which allows a larger load to roast. The (free, donation supported) Artisan software reduces airflow as the beans get less heavy and the Artisan PID follows the designed background. See also https://github.com/artisan-roaster-scope/artisan This post was copy and pasted from Frans Goddijn’s blog.
Tiny cheap fluid bed: PID tuning
Yesterday we worked again on our Tiny Little fluid bed roaster. On the menu was to further configure the PID-settings. This should make it possible to precisely and consistently execute roast profiles. For our test we used again Indian Cherry Robusta. This cheap coffee produced lot’s of chaff during the roast. Although the roast results looked fine we don’t recommend anyone to drink the as a single …
Tiny cheap fluid bed: chaff collector and more testing
Last week we did some new tests with our DIY Tiny fluid bed roaster. There were two things to test. First we wanted to test the Chaff collector that was made by Tije. Secondly we wanted to configure the PID of the TC4/ Arduino to make it accurately execute pre defined roast profiles. Tije’s chaff collector During our previous tests the tiny fluid bed roaster …
Tiny cheap fluid bed roaster update: background roast test
Yesterday we tested the “background roast” feature of the free Artisan software, with Artisan activating and regulating the heater in order to let the BT cruise along the pre-designed profile. Before our test we made a few improvements to the hard- and software configuration.
Tiny Fluid Bed Roaster update
(movie by Frans Goddijn) Last week we updated the Arduino software of our air roaster prototype. Tije fixed the new safety switch that I brought along. In case of software failure, you want to switch off the heater and keep the blower active in order to cool the beans and prevent overheating of the blower and heating element. The switch bypasses the relays that are …
Simple affordable-for-all fluid bed roaster
Tije de Jong, Frans Goddijn and I are thinking of a small simple affordable-for-all fluid bed home roaster for coffee. The roaster is supposed to roast 200 grams of coffee and work with the Artisan roast software. Furthermore the machine is intended to have PID control and adjustable airflow. This combination of things would make it an ideal home or laboratory machine that will let …
Espresso dosing funnel design
Dosing the coffee in the espresso portafilter basket and distributing evenly can be difficult. A small funnel can help to ease this proces. Tije made a beautiful one for me and there are funnels on the market like the IDR dosing tool. I’ve recently learned how to draw in 3D and I thought it was a good exercise to made a first design. The prototype is not final …
La Marzocco Linea Mini, first shot
Frans Goddijn and I are reviewing the La Marzocco Linea Mini this week (to be published in an upcoming issue of KTC magazine) and here we extract a first espresso, using the double basket included with the machine, the heavy double spout portafilter, the LM tamper that comes with the machine. Also using the Acaia scales and a Compak grinder. Monitoring the group temp which …
Affordable fluid bed roaster
Tije de Jong, Frans Goddijn and I are thinking of a small simple affordable-for-all fluid bed home roaster for coffee. We use some hard- and software idea’s from the Roastuino project. Today we installed the electronics and tested several configurations. The results are promising. To be continued!
Sudden Coffee – Just add water and stir
By Frans Goddijn & Jan van der Weel. This blog is also on kostverlorenvaart.nl Travelling can be tough when you are used to excellent coffee. How does one prepare a decent cup on the road if there is no specialty coffee place in sight? You can load all your equipment in your trunk but this isn’t a very practical solution when you travel by airplane or …
‘Kitchen stress’ relieving coffee station
I know that this coffee thing has got out of control. It has taken over our house. Our kitchen has become something of a laboratory. This 5 square meter space is crammed with cutlery, cooking equipment, kitchen appliances, dishwasher, washing machine, fridge, deep freeze, a vegetable stall and all of my coffee things: a giant roaster, a huge grinder, a big espresso machine and lots and lots …