As temperatures suddenly drop, more households are pulling their winter duvets out of storage. But what should you do if your once-fluffy down duvet looks flattened or has a musty odor when unfolded? There is no need to rush into throwing it in the washing machine right away. Because compressed down feathers can regain their volume as they absorb air, it is best to first spread out the duvet in a well-ventilated area and check its condition.

If the volume still does not return after ample airing, or if stains and odors persist, washing may be an option. However, because down and feather duvets vary in shell fabric, fill materials, and stitching methods, washing instructions differ as well. You must first check whether the product is suitable for home water-washing.

Flattened Duvet? Don't Wash It Blindly

The insulating power of a down duvet is directly related to the air trapped within its filling. Air layers formed between light, soft down and feathers prevent heat from escaping. Being compressed during storage or pressed down for a long time can reduce the duvet's volume.

In such cases, spread the duvet out widely and let indoor air circulate freely. If the weather is clear and humidity is low, drying it in a well-ventilated spot according to the product's care instructions is also an effective method. Because prolonged exposure to direct sunlight can damage the outer fabric, check the product label to see if sun-drying is permitted.

You can also gently shake the duvet to reorganize the filling so it doesn't clump on one side. However, if the flattening is caused by the aging or damage of the filling material, it is difficult to restore it to its original state through ventilation alone. If the filling is clumped on one side or feathers continue to leak out, it is better to have it inspected by a professional service rather than trying to fix it solely through washing or drying.

Use Neutral Detergent and Rinse Thoroughly

For duvets that can be washed, select the washing cycle permitted on the product label. Generally, a blanket course or delicate washing cycle can be an option, but because suitable cycles vary depending on the washing machine type and the product itself, you should not apply a universal rule.

Use a neutral detergent or a specialized down detergent recommended by the product. It is best to avoid fabric softeners and bleaching agents. After washing, rinse thoroughly to ensure no detergent remains, and spin-dry using the method permitted by the product.

Follow the product guidelines regarding whether to use a laundry net. Cramming the duvet forcibly into a laundry net may prevent proper washing, and if the duvet is too large to fit comfortably inside the washing drum, it is better not to process it in a household washing machine.

Drying Matters More Than Washing: Dry All the Way Through

The step that requires the most care in down duvet management is drying. Just because the outer shell feels dry does not mean the internal down and feathers are completely dry. If moisture remains in the filling, it can cause odors and prevent the duvet from fluffing up properly.

If dryer use is permitted for the product, strictly follow the indicated temperature and methods. For products that allow low-heat drying, use the low-heat setting, and occasionally take the duvet out to gently loosen the clumped filling, which helps check the drying progress. For products where dryer use is prohibited, follow the manufacturer's guidelines, such as air-drying.

When air-drying, spread the duvet out fully in a well-ventilated location. Using two drying racks or clotheslines to minimize overlapping areas helps air circulate effectively. Throughout the drying process, check the condition of the product, flip it over, and gently smooth out any clumped filling areas without damaging the outer fabric.

It is best not to place the duvet back on the bed or put it into storage before it is completely dry. If you are uncertain whether the drying is finished, spend extra time drying it further.

If the volume remains flat even after washing and thorough drying, putting extra effort into the drying process can help. If your down duvet is safe for a tumble dryer, try placing 2 to 3 clean dryer balls into the dryer along with the duvet, and run it on a low-heat cycle permitted by the product label. If you don't have dryer balls, clean tennis balls can be used as an alternative. As the dryer rotates, the balls gently beat the duvet and break up clumped filling, helping air re-enter between the down and feathers to restore volume.

If the duvet is large, you must also ensure there is enough space for it to move freely inside the dryer. You can temporarily pause the dryer midway, take out the duvet, gently shake it to loosen clumped spots, and resume drying. Make sure to complete the drying process for the internal filling rather than stopping when only the outer shell is dry.

If an unboxed down duvet from storage has a mild odor, there is no need to wash it right away. The unique scent of natural feathers can become more noticeable when combined with humidity. You can simply spread out the duvet to ventilate it thoroughly, remove the moisture, and see if the odor subsides.

[ⓒ Global Economic Times. 무단전재-재배포 금지]