Expiration Date
Q: Does Clorox® Regular-Bleach have an expiration date and if yes, where is it found?
A: It’s great you are paying attention to how old your bleach is because yes, bleach doesn’t last forever! When Clorox® Regular-Bleach is stored between 50°F and 70F° and away from sunlight, it will maintain label strength of the sodium hypochlorite active for up to 6 months (at this point hospitals should replace it). After 6 months it starts breaking down into salt and water, but it will still work well for the home consumer up to a year. Since it’s always diluted before use, you can just use a little more. Beyond a year, it should be replaced because the rate of decomposition into salt and water speeds up, which is a big part of why it’s environmentally friendly.
The best way to identify the age of a bottle is to use the production code stamped on the neck of the bottle, which typically looks like this:
A8116010
5813-CA3
The top line provides the information on when it was produced, which would be A8-1-160-10 (if you added dashes). You only need the first 6 digits and you read it from left to right as follows:
Plant Number—Last digit of year made—Day of the year made
A8 1 160
The bleach in this example was made in 2011 on June 9th, the 160th day of the year. If any readers have other questions, or a specific production code you are wondering about, please let me know!
Posted to by Dr. Laundry 3
