Can You Wash 100% Mulberry Silk in a Washing Machine?

After a long day, your skin and hair deserve the clean touch of mulberry silk—but hand-washing can feel like a chore. Here’s how to machine wash your silk safely and keep its...

Last updated: June 22, 2026 · By: Kelly Eleanor

Silk protein and skin comfort guide

Hand-washing silk feels like a chore, but skipping the wash lets grime build on your skin and hair. Discover the safe method to machine wash 100% mulberry silk and keep its luster.

After a long day, your skin and hair deserve the clean touch of mulberry silk—but hand-washing can feel like a chore. The good news: you can safely machine wash 100% mulberry silk, and it doesn’t have to be complicated.

Promeed’s 23-momme, 6A+ mulberry silk pillowcases and bedding are made for everyday use without sacrificing softness or sheen. Here’s how to machine wash your silk with minimal fuss, plus why the right detergent—like our Silk Laundry Detergent Sheets—makes all the difference.

Understanding 100% Mulberry Silk: Why It Deserves Special Care

100% mulberry silk is a gold-standard natural fiber. Derived from silkworms fed only on mulberry leaves, this long-filament silk is prized for its smoothness, hypoallergenic properties, and ability to repel dust mites. For anyone who follows a simple, high-performance skincare routine, mulberry silk helps reduce hair breakage, prevent sleep creases, and preserve facial moisture.

Not all silk is the same. Momme weight measures density: 23-momme silk, like every Promeed pillowcase and set, balances opulent drape with real-world durability. Thicker and more resilient than lighter 19mm silk, 23-momme 6A+ silk handles careful machine washing and keeps its luminous sheen for years. It’s also OEKO-TEX^® certified, so you’re sleeping on material free from many of the chemicals and pollutants you encounter during the day.

The Short Answer: Can You Wash 100% Mulberry Silk in a Washing Machine?

Yes, absolutely. The myth that all silk must be hand-washed came from an era when most silk was lighter and less uniform. Today’s premium 23-momme mulberry silk—especially the long-filament grade we use—is exceptionally strong. The key is handling it with the same gentle care you give your skin.

You’ll need just three things: a mesh laundry bag (often included with our zipper pillowcases), a gentle or delicate cycle on cold, and a pH-neutral detergent that won’t strip the silk’s natural proteins. Skip the harsh chemicals and high temperatures, and your silk comes out clean, soft, and ready to cradle your skin.

For more on the perfect machine setting, see our dedicated guide on the proper washing machine cycle for silk pillowcases.

Step-by-Step: How to Machine Wash Your 23-Momme Silk Bedding Safely

Follow this simple routine to keep your silk pillowcases, sheets, and duvet covers pristine—even in a busy apartment with a shared laundry room.

1. Pre-treat any stains. Apply a drop of your gentle detergent directly to the spot and lightly dab with a damp cloth. Don’t rub or brush aggressively.
2. Turn each item inside out. This protects the lustrous face of the silk and lets the interior take the brunt of any friction.
3. Place it in a protective mesh laundry bag. Our 23-momme washable silk pillowcase with laundry bag arrives with its own bag, making this step effortless. For larger pieces like our 25mm silk fitted sheet, use a larger net bag.
4. Select the gentle or delicate cycle. Choose cold water and the lowest spin speed. Hot water can weaken silk fibers and cause shrinkage.
5. Add the right detergent. Toss in one pre-measured Promeed Silk Laundry Detergent Sheet—no measuring, no mess, just consistent silk-safe cleaning.
6. Balance the load. Wash silk with other lightweight delicate items, like your silk pajamas or a few cotton tees, to avoid drum imbalance. Don’t overload the machine.

After a gentle cycle, your silk will be thoroughly clean and ready for drying. This straightforward routine fits into a weekly refresh, so your bedding always feels inviting.

Choosing the Right Detergent: Why Silk Laundry Detergent Sheets Are a meaningful upgrade

The secret to silk care isn’t just the cycle—it’s the cleanser. Standard detergents often contain proteases, optical brighteners, and harsh surfactants that attack silk protein, causing fading, pilling, and a loss of the fabric’s natural sheen. For the same reason you’d avoid a stripping cleanser on your face, you should steer clear of aggressive laundry soap on your silk.

Our Silk Laundry Detergent Sheets are designed specifically for high-grade mulberry silk. Each pre-measured sheet dissolves completely in cold or hot water, releasing a pH-neutral, enzyme-free formula that lifts away oils, sweat, and daily grime without compromising silk’s natural integrity. No residue, no plastic jugs, no guessing. Because they’re compact and travel-friendly, you can toss a pack into your carry-on for hotel stays or business trips.

If you’re looking for the best detergent, we’ve covered it in detail in our guide to the best detergent for mulberry silk pillowcases. In short, a gentle, silk-safe formula like our sheets cleans thoroughly without compromising the fabric.

Switching to detergent sheets also fits a more eco-conscious routine—each pack eliminates a plastic bottle and reduces shipping weight. For anyone building a quiet luxury home, small choices like these add up to a lifestyle of smart, sustainable comfort.

Post-Wash Care: Drying and Maintaining Your Silk’s Integrity

How you dry silk is just as important as how you wash it. Never wring or twist wet silk—fibers are most delicate when saturated. Instead, lay the item flat on a clean, dry towel, roll it gently to press out excess water, then unroll and air-dry flat or draped over a padded hanger. Keep it away from direct sunlight, radiators, and dryers; high heat causes yellowing and weakens the thread.

If you prefer a crisp finish, iron on the cool “silk” setting while the fabric is still slightly damp. Our 23-momme mulberry silk often dries with fewer wrinkles than lighter weights, so a quick steam or low-iron refresh is usually all you need.

A question we often hear: “How often should I wash my silk pillowcase?” As a rule of thumb, every 1–2 weeks keeps your pillowcase hygienic and your skin breakout-free. Because silk naturally resists dust mites and allergens, you can go a bit longer between washes than with cotton—which makes upkeep even easier.

Common Mistakes That Ruin Silk (And How Promeed Helps You Avoid Them)

Even the most careful among us fall prey to these silk-care missteps. Here’s how to steer clear, and how our products provide built-in safeguards.

• Using bleach or fabric softener. Bleach disintegrates silk instantly; softeners coat fibers and reduce breathability. Our detergent sheets are completely free of both.
• Skipping the mesh bag. Without a protective bag, agitating drum fins can snag and pull threads. Every 23mm silk pillowcase set from us includes a durable mesh bag from the start.
• Washing with heavy items. Denim, towels, and zippered hoodies rub against silk and cause pilling. Keep it to lightweight companions.
• Ignoring water temperature. Even warm water can gradually degrade silk fiber. Always choose the cold setting.
• Overusing detergent. Excess soap leaves a dull film. Pre-measured sheets eliminate this guesswork entirely.

By correcting these habits, you’ll extend the life of your silk bedding. Regular, gentle washing also helps maintain silk’s quality by removing oils and pollutants that can degrade fibers.

Frequently Asked Questions

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See the recommended 23mm 6A+ Zipper Mulberry Silk Pillowcases 2 Pack Mixed Colors