How to Wash Blackout Curtains: A Complete Guide

Blackout curtains are an excellent investment for creating dark, restful sleeping environments, but they require proper care to maintain their light-blocking properties and fabric integrity. Whether you're managing bedroom storage solutions small spaces or simply maintaining your home's comfort features, knowing how to clean blackout curtains correctly will extend their lifespan and preserve their effectiveness.

Before You Start: Check the Care Label

The most important step in cleaning blackout curtains is consulting the manufacturer's care instructions. Different blackout curtains have varying cleaning requirements depending on their fabric composition and special coatings. Some curtains are machine washable, while others require dry cleaning or spot cleaning only. Always check the care label first to avoid damaging your investment.

Machine Washing Blackout Curtains

Many blackout curtains can be safely machine washed if the care label permits. Machine-safe materials include triple-weave polyester, unlined or lightly lined curtains, and synthetic blends. Rubber-backed fabrics and thick fabrics with synthetic coatings can typically be machine washed, but only with a gentle cycle.

Preparation steps:

• Remove the curtains carefully from the window rods
• Disconnect any hooks, rings, attachments, or hardware
• Use a vacuum cleaner with a soft brush attachment to remove dust and loose debris
• Close any Velcro fasteners or secure the curtains in a mesh laundry bag for extra protection

Machine washing guidelines:

• Use cold water and a gentle or delicate cycle
• Select low spin speed to prevent damage to the fabric
• Add only a small amount of mild detergent
• Avoid bleach, fabric softeners, and brighteners, which can damage the blackout coating
• Do not overload the washing machine
• Run a short rinse cycle to remove all detergent residue

Drying after machine washing:

• Never use a dryer unless the care label explicitly permits it, as heat can damage the blackout coating
• Hang the curtains immediately after washing to air dry
• Alternatively, lay them flat on a clean towel to absorb excess moisture before hanging

Hand Washing Blackout Curtains

Hand washing is a gentler alternative to machine washing and is ideal for delicate or embellished blackout curtains. This method gives you greater control and minimizes the risk of damage to special coatings.

Hand washing process:

• Fill a large tub or sink with cold water
• Add a small amount of mild detergent suitable for your fabric type
• Submerge the curtain and let it soak for 10 to 15 minutes
• Gently agitate the water without twisting or wringing the fabric
• Drain the soapy water and rinse thoroughly with cool water until all detergent is removed
• Press water out gently using a clean towel
• Hang to air dry completely before rehanging

Spot Cleaning for Minor Stains

For isolated marks and stains, spot cleaning is an effective method that doesn't require washing the entire curtain. Treat stains as soon as possible for the best results.

Spot cleaning supplies:

• A clean, white cloth or soft sponge
• Warm water mixed with a few drops of mild detergent
• A mild, non-abrasive cleaning solution designed for coated fabrics (if available)

Spot cleaning technique:

• Dilute the cleaning solution according to manufacturer instructions
• Gently blot the stained area with a soft cloth—do not scrub or rub hard, as this can strip away the protective coating
• Continue blotting until the stain is lifted
• Use a clean, damp cloth to remove any excess cleaning solution
• Allow the area to air dry completely before hanging the curtains back up

Treating specific stains:

• Grease stains: Use a small amount of dish soap
• Pet messes: Use enzyme-based cleaners designed for pet stains
• Mold or mildew: Test a vinegar-water solution on a hidden spot first, then apply gently

What to Avoid When Cleaning Blackout Curtains

Certain cleaning methods and products can permanently damage blackout curtains:

• Harsh chemicals or strong detergents that weaken fibers and diminish blackout quality
• Abrasive brushes or scrubbing motions that can strip the protective coating
• Bleach and brightening agents
• Fabric softeners
• Hot water, which can damage coated fabrics
• Excessive moisture that can leave water rings or stains
• Wringing or twisting the fabric, which causes permanent creases and damage
• Machine drying, unless explicitly permitted by the care label

Professional Dry Cleaning

If you prefer not to wash your blackout curtains yourself or if the care label indicates dry cleaning is necessary, professional dry cleaning is an excellent option. Dry cleaners use solvents rather than water to remove dirt and stains, making this method suitable for delicate or sensitive fabrics. Request a gentle, solvent-based cleaning to protect your curtains.

Maintenance and Frequency

Blackout curtains should be machine washed or hand washed at least once a year with laundry soap or mild soap to remove excess soil, dust, and stains. Regular maintenance keeps your curtains fresh while preserving their blackout properties. Between full washes, use a vacuum cleaner with a soft brush attachment to remove dust accumulation. Just as you might organize socks drawer or organize nightstand drawer to maintain bedroom order, establishing a regular curtain cleaning schedule helps maintain your bedroom's comfort and functionality.

More tips in the section Bedroom Comfort & Storage