The whole reason I said use aquarium salt is because I wanted to create as little confusion for you as possible. That's why I said just in case figuring you'd ask exactly this question use aquarium salt. How ever if your sure that you know what uniodized salt is(as suggested by azjc) and know where to find it in your local food store you can use that. It must not be the regular iodized table salt that is probably what you and your family are using as a seasoning, unless your family uses only organic unrefined food. Then maybe your table salt is already uniodized, by why take the chance?