That damp, musty smell on your outdoor cushions is all too common, and thankfully, completely fixable! Don't worry, you can restore them to fresh and welcoming with a few simple steps. First, identify the source. Musty odors are typically caused by mildew or mold from trapped moisture. Start by taking the cushions outside on a sunny, dry day. Give them a thorough vacuuming on all sides to remove loose dirt and spores.
For a deep clean, create a natural cleaning solution. Mix equal parts white vinegar and water in a spray bottle—vinegar is a fantastic natural deodorizer and mild disinfectant. For tougher smells, make a paste with baking soda and a little water. Test any cleaner on a small, hidden area first. Spray or scrub the solution onto the cushion covers, focusing on stained or smelly areas. Use a soft brush for textured fabrics.
Rinse thoroughly with a hose or a damp cloth to remove all cleaning residue, as leftover vinegar or baking soda can attract dirt. This is the most critical step: DRY THEM COMPLETELY. Sunlight is your best ally here, as UV rays help kill mold and bacteria. Prop the cushions on their sides or use a fan to ensure air circulates around all surfaces. They must be bone-dry to the core before you put them back.
To prevent the smell from returning, store cushions in a dry, well-ventilated place when not in use for long periods. Consider using waterproof storage boxes or breathable covers. For ongoing maintenance, sprinkle baking soda on the cushions, let it sit for an hour, and then vacuum it off every few weeks to absorb odors and moisture. With these tips, your outdoor seating will stay fresh and inviting all season long.