Why does the refrigerator condenser need anti-corrosion

Since the condenser of the refrigerator is cleaned with a cleaning agent, it may corrode the condenser itself. Even if the impact of cleaning is not discussed, the cooling water will be contaminated most of the time. When flowing through the water-cooled condenser, It will also corrode the condenser. Therefore, the condenser needs to be anti-corrosion. No matter it is in normal operation, or during cleaning and cleaning, it needs to be treated with anti-corrosion.