Things you will need
Mild detergentWashing your down comforter in your home washing machine would obviously be ideal, but most of these are not large enough to handle such large loads.
So, place your large comforter in a basket and load it up in the car.
Drive down to your nearest laundromat.
Load the comforter in the washing machine.
Spread it out. It is very important that there is extra space above the comforter. Do not add any other sheets or clothing with the comforter. That extra room above the comforter is necessary for the detergent and water to be evenly distributed over the comforter.
Next, add the detergent (sparingly) into the respective compartment. Use only the mildest detergent. Harsh detergents could abrade the comforter and even cause fading and discoloration.
In case the comforter is white, add some bleach to whiten it and also eliminate germs.
Choose the gentlest cycle – warm or cold (as indicated on the down comforter’s label). Heat can destroy your comforter’s shape, fluffiness, and even cause fading.
Never use a softener or fabric conditioner as it could coat the down filling and weigh it down. This could reduce your comforter’s fluffy appearance.
Start the machine.Run errands, go shopping, or read your favorite novel while the machine’s wash cycle finishes. Be patient: most washers run for cycles of at least 45 minutes to an hour for larger loads like down comforters.
Since down comforters are very heavy and bulky, all of the detergent may not come off in a single rinse cycle. In such a case, you might have to run the cycle again. (Be patient, it’s all worth it!)
Note: If you choose to wash your comforter in a machine with an agitator, make sure the comforter does not get stuck around the agitator. Keep checking to ensure that the load is evenly balanced throughout the washing cycle.