Uploaded January 2026 | Updated September 2026, 2 days ago

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Have you wondered about how coffee processing and fermentation affect the flavor of coffee? I sat down with podcaster and coffee processing specialist Lucia Solis to ask, "what do roasters really need to know about coffee processing and fermentation?" We cover fermentation basics, anaerobic, co-ferments, and more.

04:11 What is fermentation when we're talking about coffee?
05:58 What is anaerobic fermentation?
10:33 How does fermentation impact coffee flavor?
12:29 What's the difference between natural and washed?
19:03 What is the biggest misconception roasters have about processing?
20:00 How has your approach to fermentation changed?
24:33 Inoculation vs co-ferments vs infused coffees
32:41 What is your hope for how roasters interact with producers?
34:34 Where does coffee flavor come from?
38:34 Lucia's final thoughts

Listen to Lucia's podcasts, join her Patreon, and learn more from her at https://www.luxia.coffee

Do you have more questions about fermentation and coffee processing? Let me know in the comments! And please like the video, subscribe to the channel, and follow for more coffee and coffee roasting content.
Cheers and happy roasting!