biological indicator

A biological indicator is a tool used to verify the effectiveness of sterilization processes, such as in healthcare or food safety. It contains a known quantity of resilient microorganisms that are designed to survive less effective sterilization but be killed when proper sterilization methods are applied. After processing, the indicator is tested; if the microorganisms are destroyed, it confirms that the sterilization was successful. This provides an accurate, biological confirmation that sterilization conditions are adequate to eliminate harmful microorganisms and ensure safety.