Most couch cushions are designed with a heavy-duty foam stuffing, which holds its shape well even through years of use. When the couch cushions require cleaning, your goal is to remove all build-up and odour without using excessive amounts of liquid. Eliminating the need for water is important as this prevents the foam from absorbing the water. Mildew could grow on the foam if it got too wet.
Deodorise and disinfect the surface of the cushions by spraying them with a spray bottle full of vinegar. Cover the cushions with a light coat of the vinegar and let them air-dry.
Pour 2 cups of water and 2 tablespoons of washing powder into a bowl for a more thorough cleaning.
Whisk the two ingredients until you have a large amount of soap suds.
Collect the soap suds by scooping them up with a cleaning rag. Wipe the suds into the foam couch cushions. Using the soap suds alone eliminates the need for the water. Continue whisking and scooping up the suds as needed until all sides of the couch cushions are cleaned.
Let the cushions air-dry before placing them back on your couch.