What is the shelf life of bleach?

The shelf life of bleach, specifically household liquid bleach, is typically around 6 to 12 months when stored properly in a cool, dark place. Over time, the active ingredient, sodium hypochlorite, can degrade, reducing its effectiveness. Unopened bleach can last longer, but once opened, it's best to use it within a few months for optimal results. Always check for any changes in color or strength before use.