Originally Posted by okiepastor
You can fill you iron with vinegar. set to steam after soaking for overnight, let it heat up, steam a minute or two over an old towel I use vinegar straight to remove starch build-up. wipe on, let sit, then wipe off....if it is stubborn, heat the iron on 1 or 2.
If you have a metal trivet or the equivalent, you can set the iron on it in your kitchen sink and let it steam until the iron is almost empty. That will take almost everything built up out of the iron.