Which sterilizer uses heated glass beads and sterilizes in 1–10 minutes?

• A. Autoclave
• B. Hot bead sterilizer
• C. Chemical sterilizer
• D. UV sterilizer

Answer: (B)

The idea being tested is rapid heat-based sterilization using heated glass beads. A hot bead sterilizer keeps beads heated to a high temperature, and metal implements are placed into or moved through the beads so heat transfers to the surfaces. This heat inactivates microorganisms quickly, often within a short time frame like 1–10 minutes depending on the device and the item. It’s a convenient method in settings like beauty not because it sterilizes every possible item, but because it’s fast and simple for small metal tools that can withstand heat. It’s not the same as an autoclave, which uses steam under pressure for thorough sterilization and typically requires longer cycles and specific loading. Chemical and UV sterilizers work differently and have different limitations, such as residue concerns or incomplete penetration. So the heated glass bead approach is best recognized for its quick, direct heat transfer that achieves rapid sterilization of suitable small metal implements.