How can I effectively clean a dishwasher drain hose?

To effectively clean a dishwasher drain hose, first disconnect it from the dishwasher and sink. Use a mixture of hot water and vinegar to flush out any debris or buildup. You can also use a pipe cleaner or a long brush to scrub the inside of the hose. Reconnect the hose and run a cycle with a dishwasher cleaner to ensure it is thoroughly cleaned.