<human>:  How to get rid of rust from a knife blade?
<bot>: 
1. Start by soaking a cloth in white vinegar and wrapping it tightly around the blade.
2. After taking off the cloth, use a scrubbing pad or steel wool to scrub off the rust.
3. Rinse the blade off with water and dry it with a soft cloth.
4. To prevent rust from forming in the future, consider coating the blade with a thin layer of plant-based oil.