How to Care for a Down Jacket: Washing, Drying & Storage

The practical implication: washing a down jacket when it needs washing is not damaging, rather, it's beneficial. The fear of washing can lead people to under-wash their jackets, allowing body oil accumulation to degrade performance. If your jacket seems less warm than it used to be, washing is almost always the right first step. Body oil build-up is the most likely cause, and a correct wash and dry will restore most of the lost performance. How often to wash: occasional wear, once a year is sufficient. Regular hard use, two to three times a year, or after any trip involving significant sweating or moisture exposure. If in doubt, wash it.

Most down care guides tell you to use specialist down wash rather than standard detergent in order to preserve the ‘natural oils’ in the down clusters. This is the standard advice, and it's worth examining because it's not quite correct.

Here's the issue: by the time down reaches a finished jacket, it has already been through extensive processing. Commercial down, particularly at the quality grades used in premium jackets, is thoroughly cleaned, sterilised and graded before it is ever sewn into a baffle. This process, which removes allergens, organic matter and odour-causing bacteria, also removes most of the natural oils from the clusters. The oils that specialist down wash is supposedly preserving have largely already been removed in the manufacturing process. So the "protect the natural oils" argument is, in practice, somewhat hollow. This doesn't mean specialist wash is pointless. It means the real reason to use it is different from the reason usually given.

Standard detergents, particularly biological ones, contain enzymes that break down organic matter efficiently. This is exactly what makes them effective at removing stains and body soiling from everyday clothing. Down filaments (these are the fine strands that make up each cluster) are composed of keratin, the same fibrous protein as wool, hair and feathers. Repeated washing in standard biological detergent will, over time, gradually degrade this filament structure, reducing the clusters' ability to loft. This effect is not dramatic after a single wash, but it is cumulative.

Specialist down wash cleans effectively without biological enzyme chemistry. This being the case for using it. It also won't leave a detergent residue in the baffles that binds the filaments together, a consequence of the use of standard powder detergents in particular. The practical guidance: use a non-biological liquid detergent at minimum, but a specialist down wash such as Nikwax Down Wash Direct or Grangers Down Wash is the better choice for a jacket you're planning to use for many years. For DownTek™ treated down specifically, both Nikwax Down Wash Direct and Grangers Down Wash are compatible and will clean without stripping the hydrophobic treatment.

Use a front-loading machine. Top-loading machines with central agitators are too mechanically aggressive and the agitator can stress baffles and seams. A front-loader's drum tumbling action is gentle enough. If you only have a top-loader at home, use a launderette front-loader. Before washing: empty all pockets, close all zips, velcro and press studs. Clean the detergent drawer of any residual standard detergent as even small amounts can affect the wash. If there are visible stains, spot clean them first with a damp cloth and a small amount of down wash before putting the jacket in the machine.

Wash the jacket on its own or with one other down item, not mixed with other laundry. Add the down wash following the dosage instructions; for Nikwax Down Wash Direct, add directly to the drum rather than the drawer. Set to a gentle or delicates cycle at 30°C with a low spin speed if possible. Some Jöttnar jacket care labels specify cold wash. Always follow the label instruction for your specific jacket. Run an additional rinse cycle after the main wash. This matters: residual down wash in the baffles is almost as problematic as residual standard detergent, preventing full loft. When removing the jacket from the drum, support its full weight; wet down is heavy and a jacket lifted by one shoulder can stress the baffles and seams.

Spot cleaning for minor marks: dampen a cloth with warm water and a small amount of down wash, work gently into the mark from the outside without scrubbing, wipe clean with a damp cloth, and allow to dry fully before storing or wearing. Spot cleaning addresses surface marks but not body oil accumulation in the down itself, which requires a full wash. Do not dry clean a down jacket. Dry cleaning solvents strip the DownTek™ treatment and degrade the down. It is also unnecessary. A correct machine wash is more effective, more thorough, and causes no damage when done properly.

Drying is where most people get confused and, as it can take an unnervingly long time, lose hope of ever restoring their jackets! It the number one customer enquiry we receive – ‘my down jacket has been ruined by the wash and won’t dry’. It hasn’t. A jacket that comes out of the wash looking alarmingly flat and clumped is completely normal. This is wet down, not damaged down. Correct drying restores loft entirely. Incorrect or incomplete drying leaves clumps that dry in place and are harder to resolve afterwards.

Add two or three clean tennis balls or dedicated dryer balls to the drum. As the drum turns, the balls continuously strike the baffles and break up clumping down clusters, helping prevent them from drying in a compressed state. Without this mechanical action, the jacket will still dry, but the risk of clusters clumping is higher. On heat setting: standard care instructions recommend low heat to protect the shell fabric and baffle construction over many wash cycles. In practice, a higher heat setting will dry the jacket faster and more effectively, and most quality fabrics and baffle materials tolerate it well. For jackets with lightweight face fabrics lower heat is the less risky choice. Follow the label’s care instructions. Check every 20 to 30 minutes during drying, remove the jacket and break up any remaining large clumps by hand, working the baffles gently. Return to the dryer and continue.

How to test for complete dryness: compress a section of the jacket firmly in your hand and release it. It should spring back to full loft immediately. If any section feels heavy, damp or fails to spring back, continue drying. The outside of a jacket can feel dry while the inner baffles still contain damp down. This is the most common storage mistake and leads to mildew establishing in the down, which produces a persistent smell that is very difficult to remove and may permanently compromise the clusters. When in doubt, keep drying. Another 30 minutes costs little; storing a damp jacket costs the jacket. DownTek™ note: the heat of tumble drying also reactivates the DownTek™ hydrophobic treatment.

The DownTek™ treatment on all Jöttnar down jackets is a permanent PFC-free hydrophobic treatment bonded to the down clusters themselves. Unlike DWR treatments on the outer shell fabric, DownTek™ does not degrade with washing when the correct wash product is used. It is a molecular bond to the filament surface, not a topical coating. The maintenance requirement is minimal: use a compatible wash product (Nikwax Down Wash Direct or Grangers Down Wash), dry thoroughly, and the treatment will perform for the working life of the jacket. The shell fabric has a separate DWR finish that does degrade with use and washing. This is a surface treatment on the face fabric and is separate from the DownTek™ treatment on the down. To refresh it: a short tumble dry on a warm setting after washing often reactivates existing DWR sufficiently. If the outer fabric continues to wet out rather than bead light water, apply a specialist DWR spray such as Nikwax TX.Direct or Grangers Performance Repel, following the product instructions. Re-apply as needed.

On storage: never store a down jacket in its stuff sack beyond the few hours or days of a trip. Long-term compression causes the clusters to lose their structural resilience, progressively reducing their ability to fully expand. Store hanging on a large coat hook, or loosely in a large breathable bag such as a pillowcase or cotton bag. A wardrobe hanging position is ideal. The jacket should be in its fully lofted state throughout storage. Ensure it is completely dry before storing as even slight residual moisture will cause mildew to develop during storage, damaging the down and producing a persistent unpleasant smell. Do not store near radiators or in direct sunlight, both of which will degrade the shell fabric and DWR finish over time.

The jacket won't loft after drying. Cause: incomplete drying, insufficient tennis ball action, or clumps that weren't broken up manually during the process. Fix: return to the dryer with the tennis balls, check every 15 minutes and work the baffles by hand at each check. The jacket is not done until every section springs back to full loft on the compression test.

The outer fabric DWR no longer beads water. Cause: DWR wears off with use and washing - normal and expected after a season of regular use. Fix: 20 minutes in the dryer on a warm setting often reactivates existing DWR. If this doesn't restore beading, apply Nikwax TX.Direct or Grangers Performance Repel following the product instructions. Re-apply as needed.

A complete quick reference: do not use standard biological detergent; do not dry clean; do not use a top-loading machine with an agitator; do not store compressed in a stuff sack; do not store even slightly damp; do not expose to prolonged direct heat or sunlight in storage. Everything else is fairly forgiving and a well-made down jacket with DownTek™ treatment is more resilient than the care instructions above might suggest.