kuivahöyrysterilointiin

Kuivahöyrysterilointi, also known as dry heat sterilization, is a method used to sterilize medical equipment, laboratory glassware, and other heat-resistant materials. This process involves exposing the items to a high temperature in a dry environment for a specific duration. The elevated temperature causes denaturation of microbial proteins and enzymes, leading to their death. Dry heat is less efficient than moist heat (autoclaving) at penetrating materials, so longer exposure times and higher temperatures are typically required.

The sterilization process is carried out in a specially designed oven or chamber. Common temperature-temperature-time combinations include 160 degrees Celsius for 2 hours, or 170 degrees Celsius for 1 hour. The exact parameters depend on the type of material being sterilized and the microbial load expected. It is crucial that the items are completely dry before entering the sterilizer, as moisture can interfere with the effectiveness of the dry heat.

Kuivahöyrysterilointi is suitable for materials that can withstand high temperatures and are sensitive to moisture or do not permit penetration by steam. This includes powders, oils, waxes, sharp instruments where dulling is a concern with autoclaving, and certain types of glass syringes. However, it is not appropriate for plastics, rubber, or fabrics, as these materials can degrade or melt under the high dry heat. Thorough cleaning of items before sterilization is essential to remove organic debris, which can shield microorganisms from the heat.