Updated on 18-Apr-2025
Pillows absorb sweat, skin oils, and ambient moisture—conditions that let mold and mildew flourish. Left untreated, these fungi create musty odours, stain fabric, and release spores that can trigger allergies or asthma. This guide shows you how to spot mold early, wash it out safely, and keep pillows dry so the problem doesn’t return.
Table of Contents
Step 1 – Spot the Warning Signs
Dark dots, yellowish rings, or a persistent earthy smell usually signal fungal growth. Press the pillow surface—if you notice dampness or see a puff of dust‑like particles, spores are likely present and immediate cleaning is required.
Step 2 – Strip Off Cases and Protectors
Remove all pillowcases, shams, or zip‑on protectors before washing. Shake them outdoors to release loose spores, then launder separately in hot water with a regular detergent plus one cup of white vinegar. Hot water kills spores; vinegar helps break down stains and lingering odours. Dry on high heat or in direct sun to ensure every layer is completely moisture‑free.
Step 3 – Wash the Pillows in Hot Water
Most polyester- or down‑alternative pillows can handle a hot wash cycle. Check the care label first.
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Load Size – Wash two pillows at a time to balance the drum.
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Detergent – Use a standard liquid detergent (about 2 tbsp). Skip bleach; it can weaken fabric.
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Add a Booster – Pour 1 cup of white vinegar into the rinse compartment. Vinegar neutralises odours and helps dissolve any remaining spores.
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Cycle – Select hot water, gentle agitation, and an extra rinse. The high temperature kills mold; the second rinse removes soap residue that can trap moisture later.
Step 4 – Dry Thoroughly to Block Regrowth
Moisture left inside a pillow is the fastest route to new mold.
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Machine‑Dry: Tumble on low‑to‑medium heat until the core feels bone‑dry—usually 60‑90 minutes.
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Add Dryer Balls: A pair of clean tennis balls speeds drying and keeps filling fluffy.
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Sun‑Dry Boost: If weather allows, finish in direct sunlight for one hour. UV rays add an extra antimicrobial punch.
Press the centre firmly; if it feels cool or damp, keep drying.
Step 5 – Natural Deodoriser for Stubborn Spots
Even after a hot wash, faint odours can linger.
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Baking Soda Sprinkle: Dust the entire surface with 3 Tbsp of baking soda. Let it sit overnight; vacuum off in the morning.
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Targeted Vinegar Mist: Mix 1 part white vinegar with 3 parts water. Lightly mist any stained area, wait 15 minutes, blot with a towel, then air‑dry. The vinegar scent fades as it dries.
Always spot‑test a corner first to avoid discoloration.
Step 6 – Keep Pillows Dry and Ventilated
Prevention saves time and money.
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Wash pillowcases weekly; they trap sweat and skin oils.
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Use a zip‑on, moisture‑resistant pillow protector.
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Rotate or fluff pillows every few days to release trapped humidity.
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Maintain bedroom humidity below 50 % with a dehumidifier in summer and good heating‑ventilation in winter.
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Never store spare pillows in damp basements or sealed plastic bags—choose a breathable cotton bag in a cool, dry closet.
Conclusion – Fresh Pillows, Healthier Sleep
Regular cleaning wipes out mold spores before they spread, protects your respiratory health, and extends pillow life. A hot wash every three to six months, plus diligent drying, keeps fungi at bay. Pair that routine with low humidity and breathable storage, and mold won’t stand a chance.
Need Professional Help?
If pillows were stored in a flood‑damaged room or mold keeps returning, deeper contamination may be hiding in your HVAC or walls. Ultimate Mold Crew offers certified mold removal services in Toronto. We use HEPA filtration, safe antimicrobial treatments, and moisture‑control plans tailored to your home.
Book a free consultation today and breathe easier tomorrow.
Frequently Asked Questions (FAQs)
Q 1. Can every pillow type be washed in hot water?
Not all—memory‑foam and latex pillows should never go in a washing machine. Instead, surface‑clean them with a mild detergent solution, wipe with a damp cloth, then air‑dry completely.
Q 2. How often should I deep‑clean my pillows to prevent mold?
For most sleepers, every 3–6 months is enough. If you sweat heavily, have allergies, or live in a humid climate, aim for every 2–3 months.
Q 3. What temperature kills mold spores during washing?
Water at 60 °C / 140 °F or higher is generally required to destroy mold spores effectively. Always confirm your pillow’s care label can tolerate that heat.
Q 4. Is bleach ever recommended for moldy pillows?
Bleach can weaken fibers, yellow fabrics, and leave harsh fumes. Hot water, detergent, and white vinegar provide safer, fabric‑friendly mold removal.
Q 5. My pillow still smells musty after drying—what now?
Sprinkle a fresh layer of baking soda over the pillow and let it sit for at least 8 hours before vacuuming. Persistent odour often means moisture remains; run another low‑heat drying cycle or sun‑dry for an hour.
If you have other pillow‑care questions or suspect larger mold issues in your home, reach out to Ultimate Mold Crew for expert advice and mold inspection services.