Ever notice how fresh coffee spots are harder to get out than old ones?

[Cleanworks]

Well, fook..

I can't recall a time when the overnight covered 40 volume trick didn't work..


But he just sent me a photo and it doesn't look any different then after rinsing...

I have these two products, what would you use and why?

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I haven't had much success with prochems coffee stain remover. Either not acidic enough,(4.5ph) or not enough reducer. Try chemspecs liquid browning remover. You will have to rinse well first. Spray it on undiluted with a heavy, coarse spray. Let sit 15 minutes. Rinse with acid to neutral rinse. Lots of dry passes. Spray again. Walk away. As it dries and evaporates, it should lighten it up. Would work better if this was the first thing you did.

 

[Andy]

you already tried 40v which would be an oxidizer, that

I have these two products, what would you use and why?

You already tried an oxidizer (40v) and that did not work. Now I would try a reducer, the Prochem CTT.

As some one mentioned you started with a complex stain, an organic stain (coffee) and a synthetic stain (the dye they add to coffee).