differentiate moist heat from dry heat sterilization?

Answer 1

So the moist heat sterilization method uses water at a high pressure. The instrument in which you can run this method is the so called autoclave. This is nothing else than a specialized pressure cooker. The temperature of the steam between 120-150 °C (248-302 F). This temperature combined with the high pressure effectively kill all microorganisms.
The dry heat sterilization is using just heat to sterilize your material. You can use fire or heat air for this method. The temperature is definitely higher than the case of moist sterilization (more than 180 °C or 356 F). This destroy all of the large biomolecule contaminants like protein (i.e. RNase enzyme).


So we sterilize the heat sensitive instruments (such as plastic made things) and fluids with the moist heat method while the heat stable (glass) things with dry heat method.
If you want to sterilize more heat sensitive things you need to use other (filter-sterilization, chemical decontamination) methods.

Answer 2

Moist Heat Sterilization

Answer 3

Moist heat more effective than dry heat, faster and safe.