How to Remove the Stored Smell from a Duvet

After spending a few months in the cupboard, it is common for a duvet to lose its fresh feel and develop that familiar stored smell. Caused by dampness, limited air circulation and cleaning-product residue, this odour can be neutralised with a straightforward method using ventilation, bicarbonate of soda and vinegar, without harming the fabric or filling.

How does the trick for removing a stored smell from a duvet work?

The most widely used approach is to air the duvet thoroughly before applying a mild solution of bicarbonate of soda and white vinegar diluted in water. This combination helps loosen residue that has built up in the fibres and neutralise unpleasant odours without leaving an overpowering fragrance.

Before carrying out any treatment, check the manufacturer’s care label. It will specify the fabric type, filling and appropriate cleaning method. Following these instructions reduces the chance of misshaping the duvet, flattening its filling or affecting its thermal comfort.

Watch a video on the YouTube channel Dicas da Kel about homemade spray solutions for removing the stored smell from blankets and duvets without having to wash everything again:

https://www.youtube.com/watch?v=bFw0vN-G3oI

A simple step-by-step method to restore a fresh smell

This method can be done at home using everyday items, provided you take care with the amount of liquid used so that the filling is not soaked. In this way, you can remove cupboard odours without increasing the moisture trapped inside the duvet.

1. Air it first
   Open the duvet out fully in a well-ventilated area, ideally near an open window or on a covered washing line. Leave it to air for 1 to 2 hours, avoiding strong direct sunlight so that the colours do not fade.

2. Make the odour-removing solution
   Combine the following in a spray bottle:

   • 500 ml of room-temperature water;
   • 2 tablespoons of distilled white vinegar;
   • 1 level tablespoon of bicarbonate of soda;
   • Optional: 3 to 5 drops of mild washing-up liquid or fabric fragrance.

Wait until the fizzing has stopped, then gently shake the bottle.

1. Spray correctly
   Lay the duvet flat and mist it with the solution from around 30 cm away. The fabric should only become slightly damp, paying particular attention to sections that stay more tightly folded in the cupboard.

2. Turn it over and repeat
   Turn the duvet over and repeat on the other side, again without using too much liquid. Excess moisture encourages the stored smell to return.

3. Dry it completely
   Leave it to dry in a ventilated place for 4 to 6 hours, or longer if the day is damp. Do not fold it away until it is entirely dry, both inside and out.

How long does it take, and how can you ensure the fibres dry fully?

The overall drying time depends on the weather and the thickness of the duvet, ranging from half a day to a full day. Dry, warm days speed up the process, whereas cold and humid conditions require continued ventilation until no damp patches remain.

A few simple household measures can make it easier to check the duvet and hasten drying, especially if the cupboard tends to be enclosed or the home is naturally humid.

• Touch test: Gently press several areas. A noticeably cold feel or extra weight suggests moisture remains inside.
• Using a fan: Positioning a fan on a medium setting towards the fabric helps moisture evaporate between the layers more quickly.
• Indirect natural light: Hanging it in a bright spot away from direct sun helps it dry without causing marks or fading.

How often should you use the trick, and how should a duvet be stored properly?

Ideally, repeat this freshening treatment whenever the seasons change, or whenever the duvet has been stored unused for more than a month. In very humid places, simply airing it every 30 to 45 days, without using a liquid solution, can help prevent cupboard odours.

When storing it, make sure the duvet is completely dry and folded without excessive compression, preferably in a breathable fabric storage bag. You can also place moisture-absorbing sachets in the cupboard and avoid shelves positioned directly against cold walls. This lowers the risk of mould and helps the duvet retain its fresh feel for longer.