What happen to the break system when the break fluid becomes moisture contaminated?

When brake fluid becomes moisture-contaminated, it can significantly reduce the system's effectiveness. Moisture lowers the boiling point of the brake fluid, leading to vapor formation under high temperatures, which can cause brake fade and reduced braking performance. Additionally, the presence of moisture can promote corrosion within the brake system components, potentially leading to leaks or failures. Regularly checking and replacing brake fluid is essential to maintain optimal brake performance and safety.