Spotting greenish patches on a slice of bread can be unsettling, particularly when preparing meals for family. While it may be tempting to assume the discoloration is minor, visible green or blue spots are typically a sign of mold growth. Food safety professionals consistently advise that mold on soft foods like bread should be taken seriously, as it indicates the product is no longer safe to consume.Mold thrives in warm, humid environments and spreads through microscopic spores that are naturally present in the air. When bread is stored too long or kept in less-than-ideal conditions, these spores can multiply quickly. On bread, mold often appears as fuzzy or powdery patches in green, blue, white, or black tones. Because bread has a soft, porous texture, mold roots—called hyphae—can extend below the surface even when only small spots are visible.
