I have tried the dish soap, hydrogen peroxide and baking soda method on pit stains and was so impressed that I tried it on other stains. It has never not worked for me. But I make a paste out of the ingredients and then rub it in, coat it really well and leave it overnight before throwing it in the next load of laundry.

No its not cause I use aluminum free deodorant sooo

It helps to understand what is actually going on. The stain is not being removed. That is impossible because the stain is a color change to the material. Instead the stain’s color change chemistry is slightly altered so that it no longer reflects a color. It becomes invisible to your eye. Chlorine does the same thing but that chemical reaction is not permanent so over time the stain can reappear. Plus chlorine destroys the material. The oxygen chemistry change that you get with products like Oxi Clean is permanent and does not harm the material but the chemical reaction involved is very, very slow. Higher temperatures speed it up but who has equipment to maintain 180 F for hours and hours? That is why Oxi Clean does not tell you about the temperature and time details in their instructions.

You can get excellent Oxi Clean results by just using time to your advantage. At room temperature allow a week for the chemical reaction to take place. I’ve done many experiments using plastic kitty litter buckets. You can check the progress every day. I started first with water at 180 F that naturally cooled to room temperature. I would get very good results in 48 hours, but they I got lazy and started with room temperature water instead and just let it ride for a week. You want to do this process with clean but stained clothes. The items involved were my wife’s white t-shirts, her white sports bras, etc.

I do not believe you get the same results with liquid hydrogen peroxide. The chemistry is probably not the same. So I look for the Oxi Clean or its equivalent on sale. Incidentally, the same oxygen process to turn stains invisible is what museums use for some restoration tasks. So remember, it is all about a very slow chemical reaction that requires time and heat.

I came to this site because I am wondering if I can do this process in an instant pot, under pressure and heat without blowing up the house.

Ugh. Bummer! I was hoping that was the cause.

I wish that were true. I haven’t used antiperspirants with aluminum in years, and I still get yellow pit stains. 🙁

So rumor has it, the yellow is from the aluminum in your antiperspirants rather than the sweat itself.

I am gonna try it on some of my colored workout shirts!! Jeni said it should work just fine using the Oxiclean White Revive even though it is colored. But I only have the regular Oxiclean on hand so we will see how well it works.