Found a weird fix for orange peel texture with a potato
Was spraying a tabletop and got that ugly orange peel effect. In a panic, I rubbed a cut potato over the surface before it dried. Somehow it smoothed things out, and now I keep a spud in my toolbox for emergencies. Your mileage may vary, but it worked for me this once.
Where did you even hear about using a potato for paint fixes? I read somewhere that potatoes have stuff in them that can break down surfaces. @oscar_fox mentioned chemical things, and that makes sense because potato juice might react with wet paint. It probably messes with the paint's texture before it hardens. But I feel like this could go wrong and ruin the finish after a while. You would need to try it on scrap wood first to see if it holds up.