How long does bleach take to disinfect? (on porous surfaces)
Short answer
longer
Porous materials need more time and solution.
What changes the time
| Condition | Time | Why |
|---|---|---|
| for heavy disinfecting | leave 10 minutes | Surfaces must stay visibly wet for the full contact time. |
| on porous surfaces | longer | Porous materials need more time and solution. |
Tips
- Never mix bleach with ammonia or vinegar; it creates toxic gas.
FAQ
How long should bleach sit to disinfect?
Keep the surface wet for about 10 minutes, then rinse.