The ministry added that the process is overseen by experts from the Supreme Council of Antiquities, in coordination with relevant archaeological inspection bodies and the Islamic and Coptic Antiquities Sector.
The statement was issued in response to claims circulating on social media alleging errors or violations in the restoration process.
The ministry added that the section currently being cleaned is not part of the original historic structure, which is located between Al-Sayeda Nafisa traffic light and Al-Sayeda Aisha Square.
According to the ministry, it is a modern extension built between 1982 and 1983 using different stone materials, after the original section collapsed in the early 1950s.
The ministry said the restoration work is still ongoing and has not yet reached its final stage.
It noted that upcoming phases will include measures to protect and insulate the stone surfaces, aimed at preserving the wall’s durability and ensuring a visually coherent appearance as part of a broader area development project.
The ministry further noted that the same section of the wall had already undergone restoration and cleaning in 2023, coinciding with the inauguration of the Al-Sayeda Nafisa Mosque opposite the site.
It said the work was carried out using the same approved scientific methodology currently being applied, including fine sandblasting with a special type of soft “sea sand”.
According to the ministry, the technique complies with international conservation standards, as the sand is softer and less abrasive than conventional sand and is used as a preparatory phase before the main cleaning process.
The structure is a historic medieval aqueduct in Old Cairo, built to bring water from the Nile to the Salah El-Din Citadel using massive arches and waterwheels.
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