How to Wash a Silk Pillowcase Without Damaging the Fibers

Posted By: Truly Free Home

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Posted On: 12/3/2025

What to Know About Silk Pillowcases 

Silk pillowcases are made from natural silk, most commonly from the cocoons of the mulberry silkworm. But not all silk is created equal. 

When shopping for a silk pillowcase, look for 6A-grade mulberry silk, which is the highest quality available. You’ll also want to check the momme count, which measures the fabric’s weight and density—a range of 19-25 momme is considered ideal. 

Always make sure you’re buying 100% pure silk. Many pillowcases are marketed as silk, but are actually silk blends or synthetic satin, so double-check the label to confirm it’s genuine silk. 

Rules for Washing a Silk Pillowcase

Silk is a delicate natural fiber, which means it needs exceptionally gentle handling. Follow these rules to keep your silk pillowcase in pristine condition: 

  • Use cool water only. Hot water can damage silk fibers and cause shrinkage. 
  • Skip harsh laundry detergent. Conventional laundry detergents contain bleach, optical brighteners, and other harsh chemicals that weaken silk and strip its natural luster. 
  • Wash inside out. This protects the outer surface from friction and keeps colors vibrant.
  • Always handle with care. No scrubbing, twisting, or wringing—silk is strong, but sensitive to rough treatment. Instead, gently press out excess water.  
  • Air dry away from direct sunlight on a flat surface. Too much sun exposure can fade and weaken silk fibers. Wet silk is heavy and can stretch out of shape. Always lay flat to dry. 


When washing silk, opt for a mild, non-toxic laundry detergent like Truly Free Home Laundry Wash, which is safe for delicate fabrics and won’t leave behind harsh chemical residue. 

Hand Washing Method for Silk Pillowcases

Hand washing is the gentlest option for silk and gives you the most control over the process. It’s ideal if your silk pillowcase is brand new, particularly delicate, or if you want to extend its lifespan as long as possible. 

What You Need: 


Instructions:

Step 1: Fill a clean sink or basin with cool water. Add ¼ cap of Truly Free Home Laundry Wash and swish gently to mix. 

Step 2: Turn your silk pillowcase inside out and submerge it in water. Gently swish it around for 3-5 minutes. Avoid scrubbing, twisting, or bunching the fabric. 

Step 3: Drain the sink and refill with fresh, cool water. Swish the pillowcase gently to rinse out all detergent. Repeat if necessary until the water runs clear. 

Step 4: Gently press the pillowcase against the side of the basin to remove excess water. Do not wring or twist. 

Step 5: Lay the pillowcase flat on a clean, dry towel. Roll the towel up with the pillowcase inside to absorb moisture. 

Step 6: Unroll and lay the silk pillowcase flat on a fresh, dry surface away from direct sunlight or heat. Reshape if needed and allow to air dry completely. 

Machine Wash Method for Silk Pillowcases 

Machine washing is a convenient option if your pillowcase’s care label indicates it’s machine washable and you’re short on time. Just be sure to use the gentlest settings possible. 

What You Need: 


Instructions: 

Step 1: Turn your silk pillowcase inside out and place it in a mesh laundry bag to protect it during the wash cycle. 

Step 2: Set your washing machine to the delicate or gentle cycle with cool water. 

Step 3: Add ¼ cap of Truly Free Home Laundry Wash to the detergent dispenser. Do not use fabric softener—it can leave a coating on silk that dulls its natural sheen. 

Step 4: Once the cycle is complete, remove the pillowcase immediately to prevent wrinkles from setting. 

Step 5: Follow the air-dry or towel-roll method below.

How to Dry a Silk Pillowcase

Never put silk in the dryer. The heat will damage the fibers and cause shrinkage. Instead, choose one of these gentle drying methods: 

Air Dry Method: Lay your silk pillowcase flat on a clean, dry surface away from direct sunlight or heat sources. Reshape as needed and allow to dry completely. This is the safest method and helps silk retain its shape and sheen. 

Towel Roll Method: After washing, lay your silk pillowcase flat on a clean, dry towel. Roll the towel up with the pillowcase inside to gently absorb excess moisture. Unroll and lay flat to finish drying. This method speeds up drying time without exposing the silk to heat. 

How to Treat Stains on a Silk Pillowcase 

Silk stains easily, so it’s important to act fast and treat stains gently. 

Step 1: Spot-test Truly Free Home Laundry Stain Spray on a hidden area of the pillowcase (like an inside seam) to ensure it’s safe for your silk. 

Step 2: Lightly mist the stained area with Laundry Stain Spray. Avoid saturating the fabric. 

Step 3: Using a clean, damp cloth, gently dab the stain. Do not rub or scrub. 

Step 4: Hand wash or machine wash the silk pillowcase following the instructions above. 

Step 5: Air dry completely. If the stain remains, repeat treatment or take the pillowcase to a professional cleaner. 

Silk pillowcases may require a little extra care, but the payoff—smoother skin, healthier hair, and fewer morning wrinkles—is absolutely worth it. And with the right approach and gentle, non-toxic products like Truly Free Home Laundry Wash, keeping your silk pillowcase fresh and luxurious is surprisingly easy.

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