When did you last clean your sofa, and when to use this viral vinegar mix?

The sofa takes a lot of daily wear, and in autumn, when everyone is indoors again, marks might build up faster. A homemade cleaner from Spain is doing the rounds right now, involving simple cleaning agents available at home, applied with a damp white towel.

It costs next to nothing, and vinegar can help with some odors and surface grime. But there is one step worth following before any liquid touches the fabric—checking the cushion label.

Check the tag before mixing anything

Look underneath a loose seat cushion, along the platform underneath it, or on the underside of the sofa. Check the cleaning instructions. On many sofas, a small tag under the seat cushion carries a letter such as W, S, WS, or X. That letter can rule out the mixture before you even make it. It generally means:

• W: a water-based cleaning method is permitted.
• S: use a suitable water-free solvent method rather than water.
• WS or SW: either an appropriate water-based or solvent-based method may be used.
• X: avoid liquid cleaners; stick to vacuuming or light brushing.

Using water where it is not recommended can cause water marks, shrinking, color bleeding, or changes to the fabric. Even with a W or WS sofa, the manufacturer's full instructions still take priority because the code does not mean every cleaner containing water is suitable.

That is why fabric type alone is a poor guide. Two sofas that both appear to be polyester, cotton, or microfiber can have different dyes, backing materials, and cleaning instructions.

What if there is no letter?

This matters particularly in Europe, where sofas do not always use the American-style W/S labeling system. Removable covers may instead come with ordinary laundry-care instructions.

For example, several sofa covers currently sold by IKEA are removable and specify machine washing at up to 40°C along with separate drying and ironing instructions. In that situation, follow the care label for the cover rather than assuming a homemade upholstery mixture is preferable.

If you can find neither a cleaning code nor useful washing instructions, test any permitted cleaner on a hidden area first. Stop if the color changes, the surface feels different, or a ring begins to form.

The viral white vinegar cleaner

The viral method is simple. Mix one cup of water with a splash of white cleaning vinegar and about a tablespoon of detergent or dish soap. Dip a white towel into the mixture, wring it out thoroughly, and wipe the upholstery, paying extra attention to visibly dirty areas.

The white cloth is useful because there is less risk of dye from the towel transferring to pale upholstery. More importantly, though, this is still a water-based cleaning mixture. That means it should not be used blindly on every sofa.

Keep the sofa damp, not wet

Vacuum the sofa first so crumbs, dust, and pet hair do not become wet grime. Then wring the cloth out thoroughly. Upholstery should be lightly dampened rather than soaked.

Blot dirty areas instead of scrubbing aggressively, and work gradually rather than flooding one spot. Good airflow will help the fabric dry afterward.

For a valuable, antique, or delicate sofa, or upholstery marked S or X, professional cleaning is always the safer option. And leather or velvet should not be treated as though they are ordinary washable fabric.

The viral recipe may be cheap and convenient, but the quickest part of the job comes first: lift the cushion and read the label.