What effect does hygroscopic have on brake fluid and what is done on a service to reduce this problem?

Hygroscopic brake fluids absorb moisture from the air over time, which can lead to a reduction in boiling point and increased risk of brake fade, as well as corrosion in the brake system. To combat this issue during service, brake fluid is typically replaced at regular intervals to ensure it remains free from excessive moisture, maintaining its performance and protecting the brake components. Additionally, ensuring that the brake system is properly sealed can help minimize moisture ingress.