This video was posted on Home Barista forum, in Cafelat Robot User Experience topic discussion: www.home-barista.com/levers/cafelat-robot-user-experience-t54550-1230.html#p668850

Recommend dispersion tool and then consider grind adjustments

Thanks for making the video

Hi. I'm a passing Cafelat robot user. I want to fix channeling, I made a heavy tamper that fits inside the ROBOT. The focus is on leveling by using a handless tamper design. As a result, deep tamping fixes channeling and improves extraction in light roasting coffee. I've also created a distribution tool, which is much better than nothing. It's a cone. You can control donut shape channeling and induce more central extraction. In this state, if you use paper filter together to control the crater caused by the falling water, you can expect better improvement.

I will keep experimenting, thanks for the video. I always get channeling in my Robot no matter what, I will give paper filter a try. Workflow : 1zpresso JX Pro 140 clicks to 160 clicks depending on bean, usually I get tasty shots on 150. RDT on beans before grinding (could this cause the coffee to clump together making channels? Need experiment) WDT a lot on the portafilter Tamp slightly, just make sure it's centered and level Press the screen firmly on coffee grounds. Pull afterwards, I always get around 1 unified stream and 1 drip spots, if unlucky I can get up to 5 drip spots with no single stream.

@SantiagoLuz

2 жыл бұрын

I don't think RDT have any negative impact in extraction. Which WDT tool do you use? I've found this to be crucial. I'm using the one from Jkim Makes, 3d printed plus acupunture needles.

I didn't experience too much channeling when using coffee ground at the roaster but now that I have a DF64 it can't make a shot longer than 10 seconds no matter what I do. Grinding finer doesn't help, grinding courser doesn't help. Any thoughts?

@SantiagoLuz

2 жыл бұрын

Try using at least 18g of coffee, use WDT, tamping it correctly and use the paper filter on top of the coffee puck. It should work!

@sweiscool

Жыл бұрын

I know it might be late, but try aligning your df64 springs and burrs. I hope this helps! Additionally, to improve consistency, season burrs with cheap dark beans.

keep it up!

what paper filter do you use? v60 cropped or aeropress

@SantiagoLuz

4 жыл бұрын

I use aeropress, but it needs to be cropped as well.

@LantieriAndrea

4 жыл бұрын

@@SantiagoLuz yes the paper filter aeropress it is larger than 58mm. Thnks a lot

@SantiagoLuz

4 жыл бұрын

@@LantieriAndrea It can be reused multiple times, though. ;)

@r_bear

3 жыл бұрын

There are also Robot paper filters...

Any solutions? I recieved mine a few days ago and after many shots, I am still getting channeling.

@SantiagoLuz

4 жыл бұрын

Are you getting channeling even when using paper filter on top of the coffee puck? You may try to use WDT (Weiss Distribution Technique, Google it).

@johncharles2357

4 жыл бұрын

@@SantiagoLuz I still get channeling after using a paper filter on top. I used to use WDT a while back, but stopped since I didn't feel like I needed it. I will try it on the Robot. Do you not get channeling anymore? If not, what are you doing differently?

@SantiagoLuz

4 жыл бұрын

I always use WDT and paper filter on top. I'm grinding using Comandante. No more channeling after using both tricks.

@roobios2

4 жыл бұрын

@@SantiagoLuz Do you feel Comandante has enough fine tuning ability to dial in shots with Robot? Are you using Red Clix add on for Comandante?

@SantiagoLuz

4 жыл бұрын

@@roobios2 Yep, it's capable of grinding fine enough. I do use Red Clix, besides I don't think it is mandatory when using manual espresso machine. And I'm willing to adapt an electric drill to the Comandante as I'm tired of cranking it. It's not hard to turn the handle, but it takes a lot of turns to grind a dose for a shot.