Posts

Mypressi Twist pressure gauge

Afbeelding
Tije added a pressure gauge (purchased from https://www.vintage-espresso-machines.nl/ ) to a Mypressi Twist espresso maker so we can monitor the extraction pressure.      

Tilted XL grinder

Afbeelding
Eureka has a tilted version of their XL grinder and here I tried the same with a hockey puck under the back of the grinder. It looks good to me. It’s possible that it has ‘zero retention’ now but I did not bother to find out. It looks kind of ‘special’ and that’s enough.  

Cuban Espresso

Afbeelding
    Filmed and edited by Roemer

Taking out the light beans

Afbeelding
After each roast I manually check the beans, not only for stones but also to take out any 'odd' beans that I spot. That's mostly the beans that remained rather light, yellowish. It's assumed that these result from unripe berries. I see this more frequently in 'pulped natural' / 'unwashed' beans. Today I took the small handful of oddly light beans and ground them the same as the sample of other beans that I roasted in that batch.  The production has Tonino #92 and the 'light' ones came out Tonino #116.  Quite a  huge difference!  The light ones also smell odd (stale peanuts). So this hand sorting is a good thing. see also: https://counterculturecoffee.com/blog/optical-sorting-qa On the left, the #92 production, on the right, the #116 'light outtakes' The roast profile. Brazil Pianta pulped natural PS Bj√∂rn Aarts has a special device to do this automatically: https://youtu.be/rzQXbWZtrIM?t=127 This "Pearl Mini" is not cheap though

LR24 Thermistor upgrade

Afbeelding
Tije de Jong performs the upgrade from pressostat to thermistor controlling the boiler temp/pressure in the LONDINIUM LR24 machine. No 'clicking' of the big pressostat anymore ;-) As of now all LR24 will come with the thermistor pre-installed.  

Circle cutter coffee

Afbeelding
Bob vG sent me a circle cutter and coffee filters so I could try adding a filter to my espresso extraction. Using the same (natural processed) Brazilian beans, the filtered extraction is mild and amplifies the fruity character, whereas the unfiltered espresso tastes more spicy.