How do I make a stain using a Brillo pad soaked in vinegar?

Making stain with vinegar and steel wool.

https://www.hometalk.com/search/posts?filter=vinegar%20stain

I'm not sure what you were looking for but I found this. https://www.thenavagepatch.com/aging-wood-vinegar-steel-wool/#comments

Hi there, I believe this is the recipe: https://www.hometalk.com/diy/paint/diy-steel-wool-vinegar-stain-8959427

DIY Steel Wool + Vinegar Stain

I believe it needs to be the actual steel wool pad, not Brillo. I believe Brillo has soap in them, so that could cause different result when mixed with vinegar

Not sure you can use a Brillo pad it has cleaning soap.

Don't use a Brillo pad. You need to use plain steel wool from the hardware store.

I believe this is the recipe: https://www.hometalk.com/diy/paint/diy-steel-wool-vinegar-stain-8959427