How to clean yacht cushions and upholstery before winter storage

Why clean cushions before storing them?

Because whatever is left in the foam at the end of the season feeds mould and odours for months, and it sets into the fabric.

A season of use leaves salt, sun cream, sweat, body oils and food in cushion covers and deep in the foam. On the surface it may look fine, but in a closed locker or a shed over winter, that residue holds moisture and gives mould and bacteria everything they need.

In spring you then face black spots, yellow sun-cream stains and a musty smell that a quick wipe will not shift. Cleaning now, while the dirt is fresh, takes far less time and saves covers and foam that would otherwise need replacing.

What do I need?

A good vacuum, a hot-water extraction cleaner or a foam upholstery cleaner, a disinfecting step, and space with air flow to dry everything.

• Sabrina-HOT, €150/day, −30% from 3 days: hot-water extraction for deep cleaning cushions, mattresses and carpets. It sprays hot water into the fabric and extracts it straight back out with the dirt.
• Sabrina-Foam, €150/day, −30% from 3 days: cleans upholstery with foam, using far less water, which suits delicate fabrics and fixed upholstery. Its disinfecting attachment, FOG@7MICRON (€289), kills bacteria, mould and viruses.
• A vacuum with an upholstery nozzle, soft brushes, clean microfibre cloths and a fabric-safe stain pre-treatment.

Heavily soiled exterior cushions and crew mattresses usually call for the Sabrina-HOT. Interior upholstery, headboards and fabrics that should stay as dry as possible are better with the Sabrina-Foam. On a full end-of-season job, many crews rent both.

How do I clean cushions step by step?

Vacuum, check the label, test, pre-treat, clean, rinse-extract, then disinfect.

1. Vacuum thoroughly. Remove sand, crumbs, hair and loose dirt from seams, piping and zips first, otherwise they turn into mud when wet.
2. Check the fabric care label. Note whether covers are removable, whether the fabric is acrylic, polyester, cotton, leather or a blend, and any maximum temperature.
3. Test on a hidden area, such as the underside or a zip flap. Check for colour loss, shrinkage or water rings once it is dry.
4. Pre-treat stains. Sun cream, wine and food marks respond best to a fabric-safe pre-treatment left for a few minutes before cleaning.
5. Clean. Use the Sabrina-HOT for deep extraction, or the Sabrina-Foam for low-moisture foam cleaning. Work in overlapping passes and don’t soak the foam.
6. Rinse-extract. Make a final pass with clean water and extraction to remove detergent residue, which would otherwise attract dirt and hold moisture.
7. Disinfect. Use the Sabrina-Foam’s FOG@7MICRON attachment to treat the cushions against bacteria, mould and viruses before drying.

How do I make sure they’re dry?

Never store a damp cushion. Stand them on edge, in shade, with air moving around them, until the foam is dry right through.

Standing cushions on their edge lets air reach both faces and lets water drain out of the foam. Keep them out of direct sun, which can fade fabric and dry the cover while the core stays wet. A fan or a breezy, covered space speeds things up a lot.

The surface drying is not the test. Squeeze the thickest part of the cushion and check the inside through the zip: if the foam feels cool or slightly damp, it needs more time. Thick foam can take a day or more, so plan the job well before the yacht goes into storage.

How should I store them?

Clean, completely dry, in breathable covers, off the floor, in a dry ventilated space.

• Use breathable cotton or fabric storage covers. Sealed plastic traps moisture and is exactly how mould starts.
• Keep cushions off the floor on shelves or racks, standing on edge where possible, so air can circulate.
• Choose a dry, ventilated space. Avoid damp lockers, engine-room adjacent areas and sheds without air flow.
• Label each cushion with its position on board. It saves a lot of time when everything goes back in spring.

What are the most common mistakes?

Most winter mould comes from too much water or cushions stored before they were fully dry.

• Using too much water. Soaking the foam makes drying slow and uneven. Extract well, or use the Sabrina-Foam on fabrics that should stay dry.
• Storing cushions slightly damp. Even a little moisture left in the core is enough for mould over winter.
• Using harsh chemicals on outdoor fabrics. Bleach and strong solvents can strip UV and water-repellent treatments and weaken stitching.
• Skipping the hidden-area test. A colour bleed or water ring on a guest-area cushion is far worse than the five minutes the test takes.

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