The care label on the guest silk-cashmere kaftan says "dry clean only." You are three days from the nearest reliable dry cleaner, the guest wants it tomorrow evening, and there is a lunch stain on the front panel. Knowing what dry cleaning actually does — and what wet cleaning can safely do instead — is what separates a senior steward(ess) from someone who guesses.
Dry cleaning is not dry
Dry cleaning immerses the garment in a non-aqueous solvent (perchloroethylene, hydrocarbon, or newer liquid silicone/GreenEarth systems). No water means no swelling of the fibre, so no relaxation shrinkage and no dye bleed. Solvent is excellent on oil and grease and poor on water-based (protein, tannin, sugar) soils — which is why dry cleaners spot those out separately before the machine.
Wet cleaning
Wet cleaning is professional, controlled washing in water using specialised low-alkali chemistry, tightly limited mechanical action and controlled drying/tensioning. It is superior for perspiration, body soil and water-borne stains, and it removes odour that solvent leaves behind.
| Dry cleaning | Wet cleaning | |
|---|---|---|
| Best on | Oil, grease, sunscreen, tailoring with interfacings, structured jackets | Perspiration, body odour, food, water-based stains |
| Risks | Dissolves glued embellishment, dulls some sequin coatings, can shrink leather trims | Shrinkage, felting, dye bleed if not controlled |
| Onboard? | Not onboard — solvent machines are not fitted on yachts | Yes, if you have the skill and the chemistry |
Hand-washing a luxury piece: the sequence
- Test colour-fastness on an inside seam with the exact solution you will use.
- Fill a clean sink or basin with cool to lukewarm water, 30 C maximum. Add a pH-neutral wool/silk detergent and dissolve it fully before the garment goes in.
- Submerge and squeeze gently — press the liquor through the fabric. No rubbing, no twisting, no wringing. 3-5 minutes, no longer; protein fibres do not like long soaks.
- Drain and rinse in water of the same temperature. A cold shock after warm water can shrink wool.
- Never lift a wet knit by its shoulders. Support the whole garment, or drain it in the basin first.
- Press the water out between two clean white towels — roll it up in a towel and press. Do not wring.
- Dry flat on a mesh rack, reshaped to its measurements. Away from sunlight, heat and the tumble dryer.
Take before measurements (chest, length, sleeve) of any knit you hand-wash, so you can block it back to size.
Onboard Notes
- "Dry clean only" is often a manufacturer covering itself. "Do not wash" (the crossed-out tub) is a genuine prohibition — respect it.
- Anything you send ashore for dry cleaning needs written guest consent and a photographic record. That is the subject of a later lesson, and it matters.
- White towels used for blotting must be white — a coloured towel will crock its own dye into a wet silk garment.
- Never hand-wash a garment you have not identified. If you cannot name the fibre, bag it, tag it and hold it.