Human: How do you clean a rusty iron skillet? Assistant: 
To clean a rusty iron skillet, first scrub the skillet with warm water and baking soda to remove any stubborn stains. Then, use a mixture of equal parts vinegar and water to create a paste, and apply it directly onto the rust spots. Allow the paste to sit for about 15 minutes, then scrub off the paste using a damp cloth or sponge. Finally, rinse the skillet in warm water and dry it thoroughly before cooking with it again.