Liberica coffee contains significantly more caffeine than Arabica, according to some studies. However, other studies suggest that Liberica has considerably less caffeine than Arabica. What’s the truth? We delve into this question in this video.
If you can’t wait for the results, here are the measurements:
Caffeine in mg/dl – Prepared as CGI Cupping:
Canephora (Robusta) - India Parchment: 93.5
Arabica - Brazil Catuai & Bourbon: 55.2
Arabica - Ethiopia Yirgacheffe: 51.2
Liberica - Malaysia MyLiberica: 42.4
Liberica - Malaysia House of Kendall: 64.0
Excelsa - India Mara Kaapi: 56.9
Chlorogenic Acid in mg/dl – Prepared as CGI Cupping:
Canephora (Robusta) - India Parchment: 97.8
Arabica - Brazil Catuai & Bourbon: 66.2
Arabica - Ethiopia Yirgacheffe: 78.9
Liberica - Malaysia MyLiberica: 63.1
Liberica - Malaysia House of Kendall: 93.1
Excelsa - India Mara Kaapi: 114.5
Density in g/l:
Canephora (Robusta) - India Parchment: 811
Arabica - Brazil Catuai & Bourbon: 752
Arabica - Ethiopia Yirgacheffe: 799
Liberica - Malaysia MyLiberica: 777
Liberica - Malaysia House of Kendall: 813
Excelsa - India Mara Kaapi: 802
Used Equipment:
Sample Roaster: Nucleus Link
Density Measurement: Lighttells MD-500
Caffeine & CGA: Lighttells CA-700
Podcast with Tobias Seewer on Liberica & Excelsa
Liberica Green Coffee from Kebun Malaya
Chapters:
0:00 Measurement Methods and Equipment
2:08 Arabica, Canephora, Liberica, Excelsa
3:29 Taste of Arabica, Canephora, Liberica, Excelsa
9:03 Density of Arabica, Canephora, Liberica, Excelsa
11:45 Caffeine Content of Arabica, Canephora, Liberica, Excelsa
19:59 More Information
▬ About the Nucleus Link sample roaster ▬▬▬
The Nucleus Link is a highly accurate convection roaster. It has been specifically designed as a sample roaster - in particular, it allows the same roast to be produced regardless of external conditions. This makes it perfect for communication between coffee growers, traders and roasters, and as a sample roaster for farm visits.
The unit comes in a shockproof box and with accessories to determine the density of the beans. It also comes with an app that selects the appropriate settings for the machine based on the altitude, type and density of the beans.
Thanks to its ease of use, the machine is also suitable for ambitious and quality-conscious home roasters.
You can find more about the roaster here:
https://roastrebels.com/en/coffee-roaster/nucleus-link
Or, if you come from Switzerland here:
https://roastrebels.ch/en/roaster/nucleus-link