Yes, black tea can flavor beans, but it works best as a light, late addition that adds color, mild bitterness, and a tannic edge without taking over. For dried beans, wait until they are mostly tender, since strong tea used too early can make texture less predictable.
Essential Concepts
Black tea: subtle flavor, darker color, mild astringency
Dried beans: add late, after softening
Too-strong tea: more bitterness, less balance
