If you’ve ever wondered if it’s okay to wash your down comforter instead of taking it to the dry cleaner, the answer is yes. You can absolutely wash a down comforter without spending upwards of $60 (depending on the size, where you live, and how dirty it is) to have it dry cleaned professionally.
You need a mild detergent, wool dryer balls (or tennis balls); a few hours to spend at a laundromat, and patience. And if yours is a king-size comforter, a lot of patience.
To do this, you’ll need mild detergent (our homemade detergent is ideal, or Woolite), wool dryer balls (or tennis balls work as well), an extra-large front loading washing machine (most home models are too small for this task) and an extra-large dryer. Here are step-by-step instructions:
Load your down comforter into the largest extra large front-loading washing machine at your local laundromat. The less crowded the comforter is in the washer and dryer, the better the results.
Add a small amount of mild detergent. Be careful here as too much detergent will strip the down or feathers of their natural coating that makes down or feathers such a superb thermal insulator.
Warm and gentle
You want to wash a down comforter using these settings on the washer: Warm wash, cold rinse; gentle (delicate) agitation and two rinse cycles. It is very important that the last bit of detergent be rinsed out.