Principles of steam sterilization

Moist heat in the form of saturated steam under pressure, is by far the most reliable medium, known for the destruction of all forms of microbial life. Steam sterilisation, therefore, is the most economical, effective and widely used method of seeking sterilisation in hospital practice. This article aims at describing the principle mechanism that makes steam an effective destruction of micro-organisms, the equipment that is most commonly used for the purpose and the practical methods of testing for sterility. The application of these principles, it is hoped, will ensure standardisation and quality control of routine sterilisation practice in hospitals thus, contributing towards the reduction in the incidence of hospital acquired infection.