How do I stop bedding and towels from smelling musty in Spain?

How Do I Stop Bedding and Towels from Smelling Musty in Spain?

Musty smells in sheets, duvet covers and towels in Spain are almost always caused by one thing: dampness — whether from incomplete drying, high indoor humidity, or both together. The solution is to ensure everything dries fully and quickly after washing, improve airflow through your home during the wetter months, and wash at temperatures high enough to kill the mould spores and bacteria causing the odour in the first place.

Why Does This Happen in Spain?

It seems counterintuitive. Spain is sunny. Spain is warm. Surely washing dries quickly and smells are not a problem? In reality, many people who move to Spain — and plenty who have always lived here — struggle with musty linen, particularly in autumn, winter, and spring, and particularly on the coast.

The reasons are specific to how Spanish homes are built and how the climate actually works.

Stone and Tile Buildings Retain Moisture

Traditional Spanish homes are designed for summer. Thick stone or brick walls, tiled floors, and small windows all work brilliantly to keep interiors cool when the mercury climbs past 35°C — but in winter and during wet weather, those same materials absorb and hold moisture. Interiors can feel cold and damp even on days when the sun is shining outside. Linen stored or dried in these rooms absorbs that ambient moisture and develops mildew.

Coastal Humidity

Life near the sea comes with humidity — and the Mediterranean and Atlantic coastlines of Spain are no exception. On the Costa Blanca, the Costa del Sol, the Galician coast, and virtually everywhere in between, relative humidity in the cooler months regularly sits above 70–80%. At these levels, linen that feels dry to the touch may still be retaining enough moisture to feed mould growth, especially when folded and stored in a wardrobe.

Low-Temperature Washing

Environmental awareness has nudged many households toward lower wash temperatures — 30°C or 40°C for most loads. This is excellent for the planet and for delicate fabrics, but it is not always sufficient to kill the mould spores, bacteria, and skin cells that accumulate in bedding and towels. When these are not removed at the washing stage, they continue to multiply — and that is where the smell comes from.

Machines and Drawers Left Closed

Washing machines that are kept closed between cycles develop their own internal mildew, which then transfers to every load you wash. Bedroom drawers and wardrobes that are rarely aired collect moisture and pass it on to everything stored inside them.

How to Fix It: The Washing Stage

Wash at 60°C When It Matters

For bedding and towels that have developed a smell — or as a regular preventive measure — washing at 60°C is the most effective single step you can take. This temperature kills mould spores, dust mites, and the bacteria responsible for odours. Many cotton bedding and towel sets can safely be washed at 60°C; always check the care label first, but if the fabric allows it, this is the temperature to use.

If your bedding is labelled for 40°C maximum, use a laundry sanitiser or antibacterial laundry additive alongside your detergent. Products designed for this purpose — available in Spanish supermarkets and online — work at lower temperatures to achieve a similar bactericidal effect.

Do Not Overload the Machine

A drum that is too full means detergent cannot circulate properly, rinsing is incomplete, and linen comes out of the wash less clean than it should be. For duvets and large bedding items especially, consider using a laundromat machine with a higher capacity if your home machine is small. A king-size duvet in a 6 kg drum is not being washed — it is being tumbled around with soap.

Use the Right Amount of Detergent

More detergent does not mean cleaner laundry. Excess detergent leaves a residue in fabric fibres that traps bacteria and odours over time, and it is not fully rinsed away in a standard cycle. Follow the manufacturer's dosing guide — and if your water is soft (as it is in parts of northern Spain and Galicia), you likely need even less than the guide suggests.

Add White Vinegar to the Rinse Cycle

White vinegar is one of the most effective — and inexpensive — tools for eliminating musty smells from linen. Add 100–150 ml to your washing machine's fabric softener drawer instead of conditioner. The acetic acid in the vinegar neutralises the alkaline residues left by detergent, removes soap build-up from fibres, and acts as a mild antibacterial agent. The vinegar smell itself disappears completely as the linen dries. Do not mix vinegar and fabric softener in the same wash.

Skip the Fabric Softener on Towels

This surprises people, but fabric softener is actually counterproductive for towels. It coats cotton fibres with a waxy layer that reduces absorbency and — more relevantly here — traps moisture and bacteria within the fabric. If your towels smell musty and you use fabric softener regularly, stopping its use on towels is one of the most effective changes you can make. Towels washed without softener and dried properly will feel coarser at first but will quickly soften with use and will smell significantly fresher.

How to Fix It: The Drying Stage

The drying stage is where most musty smells originate in Spanish homes. Even a good wash is undermined if linen is left folded in the machine, dried too slowly, or stored while still slightly damp.

Remove Laundry from the Machine Immediately

Leaving wet laundry sitting in a closed drum — even for a few hours — allows mildew to begin forming. Get it out and onto the line or the drying rack as soon as the cycle ends. If you cannot be there when the cycle finishes, many modern machines have a delay-start feature that can time the end of the wash for when you arrive home.

Dry Outside Whenever Possible

One of the genuinely great joys of living in Spain is the outdoor drying that is possible for most of the year. Sun and moving air dry linen faster than any indoor method, and UV light from the sun is a natural disinfectant that kills the bacteria and mould spores responsible for odours. In southern and eastern Spain, you can typically dry outside ten months of the year without difficulty.

Shake out items well before hanging — this fluffs fibres, reduces creasing, and improves airflow through the fabric. Towels especially benefit from being hung fully open rather than folded over a rail.

Indoor Drying in Autumn and Winter

When drying inside is necessary — as it will be in northern Spain and during the wet months further south — good airflow is essential. Hang items near an open window or under a ceiling fan if you have one. Avoid drying large amounts of laundry in a bedroom or a small enclosed bathroom, as this significantly raises the room's humidity and can worsen the very problem you are trying to solve.

A portable dehumidifier is one of the best investments you can make for a Spanish home. Running it in the room where you dry laundry will dramatically reduce drying time and lower indoor humidity simultaneously. In coastal areas particularly, a dehumidifier running during damp months can transform the smell and feel of your home.

Make Sure Everything Is Completely Dry Before Storing

This sounds obvious, but it is the single most common cause of musty-smelling stored linen. Bedding that feels dry on the outside may still be holding moisture in the centre of a folded stack. Leave items aired for longer than you think necessary before putting them away, and if in doubt, leave a folded set on top of the wardrobe overnight before storing it inside.

How to Fix It: Storage and Ongoing Maintenance

Air Wardrobes and Drawers Regularly

Leave wardrobe doors open for a few hours a week to allow air to circulate. In damp coastal areas, place moisture-absorbing sachets or a small electric dehumidifier unit inside large wardrobes. These are inexpensive and replace themselves every few months — a small price for linen that stays fresh between uses.

Do Not Overfill Storage

Tightly packed shelves restrict airflow between items, creating the still, slightly damp conditions that mildew thrives in. Leave space between stored linen sets if possible.

Keep the Washing Machine Clean

Run an empty drum clean cycle monthly — most modern machines have a dedicated programme for this, typically at 60°C or 90°C. Add a machine cleaning tablet or a cup of white vinegar and a tablespoon of bicarbonate of soda. After every wash, leave the machine door and the detergent drawer open so the interior can dry out fully between uses. Wipe the rubber door seal regularly, as this is where mildew most commonly develops in front-loading machines.

Wash Bedding Regularly

The longer bedding goes without washing, the more skin cells, sweat, and body oils accumulate — and these are the food source for the bacteria that cause smells. Washing sheets every one to two weeks and duvet covers every two weeks is the standard recommendation, and it is more important in a warm climate like Spain's than it would be in a cooler northern European one.

What About Linen That Already Smells?

If you have bedding or towels that have already developed a persistent musty smell, a single normal wash may not be enough. Try a 60°C wash with a laundry sanitiser, then hang to dry in direct sunlight for as long as possible. For stubborn cases, soak the item in a solution of warm water and white vinegar (roughly one part vinegar to four parts water) for an hour before washing. Bicarbonate of soda added directly to the drum alongside your detergent also helps neutralise embedded odours.

If the smell persists after two or three of these treatments, the mildew may be too deeply embedded in the fibres to remove. At that point, replacement is the more practical — and more hygienic — solution.

The Short Version

• Wash at 60°C regularly, or use a laundry sanitiser at lower temperatures.
  
• Remove laundry from the machine immediately after the cycle ends.
  
• Dry outside in sun and fresh air whenever possible.
  
• Make sure everything is completely dry before storing it.
  
• Stop using fabric softener on towels.
  
• Add white vinegar to the rinse cycle as a natural deodoriser.
  
• Use a dehumidifier indoors during damp months.
  
• Clean your washing machine monthly and always leave the door open between washes.
  
• Air wardrobes regularly and do not overfill storage.
  

Most musty linen problems in Spain can be solved with a combination of hotter washing, faster drying, and better ventilation — none of which requires specialist products or significant expense. A few changes to your laundry routine and your approach to drying and storage will make a noticeable difference within just a couple of wash cycles.