The roasting process increases bitterness in coffee beans; the longer coffee is roasted, the darker its color becomes and the more bitter it tastes, similar to how darker caramel is more bitter than lighter caramel.
causalpending
Evidence Quote
“The longer we roast the coffee, the darker the color of it will be. And a little bit like caramel, a darker caramel will also taste much more bitter.”
Created: 8/13/2026, 9:53:30 AM
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