Why Is My Avocado Black Inside? The Truth About Dark Flesh, and How Each Variety Behaves
You cut it open and the flesh is dark. In most cases that is normal avocado behaviour, not a bad fruit. An honest Hong Kong guide to the six things dark avocado flesh can be, a five-second "is it still good?" chart, how Hass, Shepard, Reed and Fuerte each brown, and how to judge ripeness properly.