What does bad chocolate look like?

Bad chocolate often appears dull or faded, lacking a glossy sheen, which indicates poor tempering. It may have a white, powdery residue known as bloom, caused by fat or sugar crystals rising to the surface due to improper storage. Additionally, bad chocolate may have an off or rancid smell, and a grainy texture, suggesting it has degraded or spoiled. Ultimately, it fails to deliver the rich, smooth flavor and mouthfeel expected from quality chocolate.