Material
Silk
A lustrous protein fibre that is attacked by alkali and enzymes, marked by water spotting and dulled by any rubbing, so treatment is even, cool and gentle.
- SurfacePorous
- WashingHand
- Colour run riskHigh
- Reviewed7 September 2026
What silk can and cannot take
- Heat Avoid
- Water and soaking Use with care
- Acids, including vinegar Use with care
- Strong alkalis Avoid
- Solvents Use with care
- Chlorine bleach Avoid
- Abrasives Avoid
Always test on a hidden area first and let it dry before you treat the visible mark.
General rules for silk
Silk is a protein fibre, which means alkalis and biological detergents attack it, and it is smooth and lustrous, which means any disturbance to the surface shows as a dull patch.
Water itself marks silk. A wet spot in the middle of a dry panel dries with a ring, so the working unit is the whole panel out to its seams rather than the stain.
No bleach at all, nothing hot, and nothing rubbed.
Check the label
Read the label, because a great deal of silk is genuinely dry clean only and washing it will leave permanent water marks. Where hand washing is allowed, specialists specify lukewarm water and a mild detergent, gentle agitation, and drying flat.
Stains on silk
- Baby sick Check the label first, because much silk is genuinely dry clean only. Where washing is allowed, rinse the mar...
- Blood Blot first, then use cold water and a tiny amount of compatible detergent. Work from the edge, rinse or blot...
- Body oil Dry blot silk, then wash only if the care label permits it using diluted delicate detergent. Do not apply nea...
- Breast milk Dry-blot first. Use this route only on an unstructured item whose whole label expressly permits hand washing....
- Bronzer Lift loose bronzer from silk before it is rubbed in. Blot cream bronzer, follow the material or care label, u...
- Coffee Blot without rubbing. Support the fabric and check the care label before adding water. Use a brief fibre-appr...
- Concealer Lift thick concealer from Silk, blot without rubbing, then use a very small amount of diluted washing-up liqu...
- Cooking grease Lift and blot cooking grease from Silk, then use a small amount of diluted washing-up liquid only if the mate...
- Deodorant Rub a fresh white deodorant mark off silk while it is dry. For residue that remains, follow the care label an...
- Hair dye Blot hair dye from Silk, test the mildest compatible cool detergent route, clean inwards, remove residue and...
- Lipstick Lift lipstick from Silk with a blunt edge, blot without rubbing, then use a very small amount of diluted wash...
- Motor oil Blot motor oil from Silk, absorb as much as possible, then use a small amount of diluted washing-up liquid on...
- Nail polish Lift accessible free polish without rubbing and keep the item dry. The fibre, finish or construction makes a...
- Period blood Lift any tissue with a spoon edge, then blot. Use cold water and a tiny amount of compatible detergent for th...
- Pet urine Blot until nearly dry, then use only the cool-water quantity silk can tolerate. Use a labelled pet urine enzy...
- Sweat Blot Silk, follow its care label and use one supported cool hand rinse only if permitted. Keep rubbing and he...
- Tomato sauce Lift tomato sauce from Silk, then wipe or blot inwards with a tested cool detergent solution. Remove residue,...
Silk is a filament spun by a silkworm, and it is protein, like wool and like the stain.
Water marks it
Silk shows a tide line where a wet area meets a dry one, because the fibres swell and the surface reflects light differently at the boundary. That is why spot cleaning silk is often worse than leaving it, and why an even treatment across a whole panel is the safe shape.
Alkali and enzymes attack the fibre
Biological detergents digest protein and cannot distinguish silk from milk. Strong alkalis dissolve it outright. Mild, neutral and short is the rule.
The shine is structural
The lustre comes from smooth parallel filaments. Rub them and they roughen, and the area goes permanently dull. No cleaning restores it.
Sources
What we checked and when. Where a manufacturer instruction disagrees with anything here, follow the manufacturer.
-
How to safely clean and care for delicate fabrics, Cleanse Solutions
specialist
Specialist cleaner guidance that silk is hand washed in lukewarm water with a mild detergent and laid flat to dry, that lace is hand washed in cold water and never twisted or wrung because that damages its structure, that satin is spot cleaned with cold water and a soft cloth and never scrubbed, and that chiffon is hand washed in cool water and hung rather than wrung.
Checked 7 September 2026
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How to remove baby formula stains, Purex Stain Lab
manufacturer
Manufacturer guidance identifying breast milk, formula and baby spit-up as protein stains, explaining the role of enzymes, and warning that the mark should be checked before any drying heat because heat sets what remains.
Checked 7 September 2026
-
A guide to newborn laundry, American Cleaning Institute
trade body
Cleaning trade body guide to pre-treat breast milk, formula or spit-up with an enzyme stain remover, soak fresh marks for at least 30 minutes and older marks for several hours, launder, and keep stained items out of the dryer until the mark has gone.
Checked 7 September 2026