Real Silk: What Makes Genuine Silk Worth the Premium and How to Tell the Difference

May 31, 2026

Why Silk Has Been Prized for Five Thousand Years

Silk was discovered in China around 2700 BC, according to legend, when a silkworm cocoon fell into the Empress Leizu's tea and unravelled in a single continuous thread. Whether the story is true or not, the material's subsequent history is one of the most remarkable in the entire record of human craft.

For millennia, silk production was a state secret. The Silk Road — the ancient trade network connecting China to the Mediterranean — existed primarily because the West wanted silk and China had a monopoly. Smuggling silkworm eggs out of China was punishable by death. Roman senators passed sumptuary laws restricting silk consumption because it was considered decadently expensive. The material moved empires.

It still does something that five thousand years of textile development has not found a synthetic substitute for. That's the starting point.

How Silk Is Made

A single silkworm (Bombyx mori) spins a cocoon from one continuous filament of silk that can extend up to 1500 metres. The filament is a protein structure — fibroin — coated in a gum called sericin. The cocoon is softened in hot water, the filament is reeled off, and multiple filaments are twisted together to form a silk thread of the required weight. Several threads are then woven into fabric.

The entire process is labour-intensive at every stage: cultivating mulberry trees (the silkworm's only food source), raising the worms, reeling the cocoons, spinning the thread, and weaving the fabric. This is why genuine silk costs what it costs. There is no industrialisation shortcut at the reeling stage; the filaments must be handled carefully by skilled workers.

The Properties That Justify the Price

Silk has a specific combination of properties that no synthetic material has yet replicated in full:

Natural sheen: the triangular cross-section of the silk fibre acts as a prism, refracting light at multiple angles. This is what creates silk's characteristic lustre — the way it appears to change brightness as it moves. Synthetic fibres can approximate the effect but not reproduce it.
Temperature regulation: silk is naturally thermoregulating. It insulates in cold air and stays cool against the skin in warm air. This is why silk is used for both winter scarves and summer garments.
Hypoallergenic: the protein structure of silk (similar to that of human skin) resists dust mites, mould and other allergens. The best case for silk bedding is not luxury; it's allergenicity.
Strength: silk is stronger by weight than steel. A single raw silk thread requires significant force to break. This is why silk textiles, properly cared for, last generations.
Drape: silk drapes with a fluidity that heavier synthetic fabrics cannot replicate because of the fineness of the individual fibres. The movement of a silk garment or silk curtain is a distinct quality.

Types of Silk Fabric

Charmeuse: satin-weave silk with a glossy face and a matte back. The most commonly used silk for scarves, lingerie and fashion accessories. Soft, lightweight and highly lustrous.
Dupioni: a naturally slubbed silk woven from two different threads, creating an irregular, textured surface. More structured than charmeuse; used in home furnishings and formal fashion. The slubs are a natural characteristic, not a defect.
Taffeta: a crisp, slightly stiff silk with a rustling sound when moved. Used in formal dress and structured home furnishings. The crispness comes from the tight plain weave.
Silk organza: very lightweight and sheer, used for sheer curtains, overlays and accessories where translucency is part of the design.
Mulberry silk: the highest quality designation for the silk produced from Bombyx mori silkworms fed exclusively on white mulberry leaves. Finer, more uniform and more lustrous than other silk types.
Pongee / habutai: a lightweight plain-weave silk with a natural slight irregularity. The traditional material for luxury umbrella canopies.

How to Tell Real Silk from Synthetic

The proliferation of polyester satin has made identifying real silk a useful skill. Four tests:

The burn test: the most reliable. Pull a few threads and burn them. Real silk chars rather than melts — it smells of burning hair (protein) and leaves a crushable ash. Polyester melts, forms a hard bead and smells of burning plastic. This test is definitive.
The ring test: genuine silk can be pulled through a finger ring smoothly due to its fineness. Coarser synthetics bunch and resist.
The hand feel: silk warms quickly against the skin (body heat) and feels smooth without feeling slippery. Polyester satin stays cold longer and feels distinctly synthetic — slightly sticky rather than gliding.
The price test: real silk at retail cannot be cheap. If a 'silk' item is priced like polyester, it is polyester.

Momme: The Weight Measure That Matters

Momme (mm) is the traditional weight measure for silk, equivalent to grams per square metre on a fixed weave standard. Higher momme = heavier silk = more fibre = longer lifespan.

6–8 mm: very lightweight. Sheer scarves, organza. Not durable for daily use.
12–16 mm: the standard range for scarves and accessories. Good drape and reasonable durability.
19–25 mm: bedding, pillowcases, high-quality fashion. Substantial and durable.
25–30 mm: premium bedding and upholstery silk. Maximum durability.

A silk pillowcase below 19 momme will wear quickly. A quality silk pillowcase at 22–25 momme will last years. This is the number to ask for when buying any silk product intended for regular use.

Silk in the Home

Silk in the home is primarily used in three applications:

Cushion covers: silk dupioni and charmeuse cushion covers catch light in a way linen and cotton cannot. The visual quality changes across the day as the light source shifts. Best in formal sitting rooms and bedrooms where the cushions are not under heavy daily use.
Curtains and sheers: silk sheers allow light to pass through with a warm, golden quality. Silk curtains in dupioni or taffeta have a formal, architectural presence. Both require lining to protect from UV damage (silk fades faster than cotton or linen in direct sunlight).
Bedding and pillowcases: the functional argument for silk bedding is stronger than the luxury argument. Silk pillowcases reduce friction on hair (less frizz and breakage overnight) and on skin. The temperature-regulating properties benefit both hot and cold sleepers.

Browse our silk collection for cushion covers, accessories and bedding pieces in mulberry silk and silk blends.

Caring for Silk

Silk is not fragile if you understand it. The mistakes that damage silk are all avoidable:

Hand wash in cool water (under 30°C) with a pH-neutral detergent. Never wring — squeeze excess water out by pressing gently between clean towels.
Dry flat or hang in indirect light. Never in direct sunlight — silk fades quickly with UV exposure.
Iron inside-out at the lowest setting while slightly damp. Never iron dry silk — it scorches at relatively low temperatures.
Store away from light in a breathable bag or box. Never in plastic, which traps moisture and promotes yellowing.

Dry cleaning is the safest option for structured silk garments or any piece where you're uncertain. For flat silk items like pillowcases and scarves, cool hand-washing is entirely appropriate and preferable to repeated dry-cleaning chemicals.

Silk as a Gift

A silk accessory — a hand-painted silk umbrella, a silk scarf, a set of silk pillowcases — is the rare luxury gift that is both genuinely functional and immediately beautiful. Silk gifts are appropriate at almost every occasion level: a silk scarf for a birthday, silk pillowcases for a significant anniversary, a silk umbrella for a very special occasion.

The gift of silk communicates understanding of quality rather than just expenditure. It's a material that the recipient knows is expensive not because you told them the price, but because they can feel it.

Frequently Asked Questions

What is the difference between silk and satin?: Silk is a fibre (from the silkworm cocoon). Satin is a weave structure (four threads over, one thread under) that creates a glossy surface. Satin can be woven from silk, polyester, cotton or any other fibre. Silk satin is genuinely luxurious; polyester satin mimics the appearance without the properties. Always check the fibre content, not just the weave name.
Is silk bedding worth the price?: For people who sleep hot, have sensitive skin or hair that tangles overnight: yes, meaningfully. The thermoregulating property of silk bedding reduces night sweating compared to cotton. The smooth, low-friction surface of a silk pillowcase reduces mechanical stress on hair and skin overnight. These are functional benefits, not purely luxury claims.
How do I know if a silk product is genuine?: The burn test is the most reliable: pull a few threads and burn them. Real silk smells of burning hair and leaves a crushable ash. Polyester melts to a hard bead and smells of burning plastic. The hand test is also useful: real silk warms against the skin quickly; polyester stays cool and has a slightly sticky texture. Check the price — genuine mulberry silk cannot be offered at polyester prices.
What is momme in silk?: Momme (mm) is the weight measure for silk — equivalent to grams per square metre on a standard weave. Higher momme means more fibre, heavier fabric and longer lifespan. For everyday accessories (scarves): 12–16 mm. For bedding and pillowcases: 19–25 mm. For upholstery: 25–30 mm. Always check the momme weight when buying functional silk items.
Can silk be washed at home?: Yes. Hand wash in cool water under 30°C with a pH-neutral or dedicated silk detergent. Do not wring — press between clean towels. Dry flat or in indirect light. Iron inside-out at the lowest setting while slightly damp. These four steps maintain silk indefinitely. The myth that silk must always be dry-cleaned applies to complex structured garments, not to flat silk items like pillowcases, scarves and cushion covers.