Yes, laundry detergent can expire or go bad. Most detergents, whether liquid or powder, have a shelf life, although they don't spoil in the same way food does. Over time, the effectiveness of the detergent can diminish due to the breakdown of active ingredients.
Liquid detergents typically have a shelf life of about 6 months to 1 year after opening. They can separate or become clumpy, especially if exposed to extreme temperatures. The enzymes and surfactants in liquid detergents can degrade, reducing their cleaning power.
Powder detergents generally last longer, up to a year or more, but they can absorb moisture, leading to clumping and reduced effectiveness. If stored in a humid environment, they may harden and become difficult to dissolve in water.
Detergent pods also have a shelf life of about 15 months. The film that encases the detergent can become brittle or dissolve prematurely if exposed to moisture.
Signs that detergent has gone bad include changes in texture, separation, clumping, or an off smell. Using expired detergent may not harm clothes, but it may not clean them effectively.
To extend the life of laundry detergent, store it in a cool, dry place, away from direct sunlight and temperature extremes. Always seal the container tightly after use to prevent moisture and air exposure. Check for any expiration date or "best by" date on the packaging for guidance.