Sydney Opera House uses olive oil too

Olive oil is one of the eco-friendly cleaning products used to maintain the Sydney Opera House, as part of its environmental policy which includes “green cleaning” practices. The website of this iconic building in Australia’s biggest city shares its green cleaning secrets by revealing that it uses “low corrosive non toxic cleaning practices to preserve the building fabric including olive oil for bronze fittings, clay for cleaning untreated wood and baking soda for concrete.”