How to tell if spinach has gone bad and must be discarded?

Spotting spoiled spinach early

Knowing when to discard spinach prevents unpleasant texture and potential foodborne illness. Focus on appearance, smell, and texture.

Signs of spoilage:

  • Sliminess or a slimy coating on leaves indicates bacterial breakdown.
  • Strong, off, or sour odors instead of the mild green scent.
  • Darkening, extensive yellowing, or wilting beyond normal freshness.
  • Excessive moisture and liquid pooling in packaging, which accelerates spoilage.

When in doubt:

  • If only a few leaves are damaged, remove them and use the rest promptly after inspecting and washing.
  • If most leaves show spoilage signs, discard the whole batch.
  • Frozen spinach past its freezer-burn tolerance will show dry, glassy spots and off flavors—best tossed if severely freezer-burned.

Err on the side of caution; fresh spinach is inexpensive compared with the risk of eating spoiled greens.