You don't want to use the standard OxiClean Versatile Stain Remover on your brewing equipment because it's scented and you want to avoid anything with any dyes, perfumes or fragrances.
The OxiClean Free is hard to find, not sure if they even make it any more. The Target Up and Up oxygen cleaner also is not listed on their site.
The best thing that I found is Seventh Generation Natural Oxy Stain Remover. It is "Free of optical brighteners, dyes, perfumes, and synthetic fragrances". 50 Ounce container is only $6.49 on Amazon as an add-on item, which means it ships free if the order is at least $25 and all items are shipping from Amazon.