The question comes before the article
Each treatment begins with one practical question: how can this stain be handled on this material, in its current state? We separate fresh, dried and set-in guidance only when the evidence supports a useful difference.
What we look for
We prioritise the item or material manufacturer’s instructions, product labels, recognised material-care organisations, industry technical guidance and other sources with clear responsibility for the advice. Sources must support the combination; a useful page about cotton does not automatically support wool carpet.
How safety is built in
A page is incomplete without incompatibilities, things to avoid and conditions for stopping. Site-wide rules—especially never mixing cleaners—are reinforced on every treatment.
What “reviewed” does and does not mean
Reviewed means the record has identifiable sources, material-specific steps, safety limits and a review date. It does not mean we personally tested the method, and it is not a guarantee for every dye, finish, blend, prior treatment or product formulation.
When we do not know
The finder records an unanswered combination anonymously for the editorial queue. It shows conservative precautions instead of generating a plausible-sounding recipe. Thin or duplicate pages are kept out of search results.
Corrections
If a source has changed or guidance appears wrong, email support@thestainlibrary.com with the page address and the evidence we should review.