In my tips to get started with your new Cafelat Robot I mentioned a few times my own recipes and the need to experiment with your Robot.
I’d like to share the recipe I use to start tuning my variables when brewing medium roasted beans such as espresso blends.
Remember this recipe is what works for me! I tend to favour brews with a slightly sweeter and fruity taste.
Weight and Ratio: 16g for 36g. A 1:2.25 ratio.
Grind Size: I use slightly finer ground coffee than I would for a traditional espresso machine. This works better with the long pre-infusions.
For additional reference, I use a Niche Zero as my grinder and the settings on mine work out as:
- 4 for Cafelat Robot
- 6-8 for traditional espresso machines
- 34 for v60
|Time||Weight||Pressure (Gauge)||Pressure (Feeling)|
|25s pre-infusion||1 - 1.5g||~2 bar||Minor resistance against the water in the chamber|
|30s extraction||34.5g||~8bar||Full resistance without going overboard. If you need to exert too much effort to get an even extraction then your grounds are too fine.|
- I pre-heat the portafilter/chamber using the steam coming out of the kettle while water boils. I don’t bother preheating the Robot’s piston.
- I don’t lower the pressure during the final seconds of extraction unless it’s a very light roast.
- I use boiling water for the recipe above.