<p>In many museums, archaeological glass covered with corrosion crusts does not undergo conservation cleaning. However, in Russia there is a tendency to clean corroded glass, and several methods are proposed in the specialized literature, but their long-term effect on the safety of glass and its chemical resistance has not been studied. The purpose of this work is to study the influence of conservation methods on the mechanism of reformation of corrosion under alkaline leaching conditions. For the study, methods of scanning electron microscopy with energy dispersive analysis, laser induced breakdown spectroscopy, and powder X-ray diffraction were used. As a result of the study, it was found that the duration of the artificial leaching cycle affects the mechanism of development of chemical degradation of glass. As for the conservation methods for cleaning glass, the method of boiling the sample in water with quartz sand turned out to be the closest in terms of the mechanism of corrosion development to the untreated test sample. The method of washing in a water-alcohol mixture, most often used in the conservation practice of Russian museums, turned out to be the most ineffective and unsafe for the chemical stability of glass.</p>