Hot sterilizing ovens are held at what temperature range?

Enhance your skills with the CWEA Grade 2 Lab Analyst Test. Study with flashcards and multiple choice questions, each offering hints and explanations. Prepare successfully for your exam!

Multiple Choice

Hot sterilizing ovens are held at what temperature range?

Explanation:
Dry heat sterilization relies on holding a steady, high temperature long enough to inactivate microorganisms, including spores. The standard practice for hot air ovens is to target about 170°C, with a tolerance of ±10°C. That means roughly 160–180°C. This range provides effective sterilization while staying within what typical lab equipment and materials can tolerate. Going much higher can risk damaging glassware or causing oxidation; going much lower can fail to achieve sterilization in a reasonable time. The centered 170°C with the ±10°C range captures the common operating standard for these ovens.

Dry heat sterilization relies on holding a steady, high temperature long enough to inactivate microorganisms, including spores. The standard practice for hot air ovens is to target about 170°C, with a tolerance of ±10°C. That means roughly 160–180°C. This range provides effective sterilization while staying within what typical lab equipment and materials can tolerate. Going much higher can risk damaging glassware or causing oxidation; going much lower can fail to achieve sterilization in a reasonable time. The centered 170°C with the ±10°C range captures the common operating standard for these ovens.

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