How to Check Pure Silk: Silk Mark, Burn Test and Zari Tips

Wedding season in Rajasthan brings a rush of saree buying, and a silk saree is often the most expensive textile a family buys all year. Kota’s shops sell everything from local Kota Doria to Banarasi, Kanjeevaram-style and printed silks brought in from other states. This guide explains how to check pure silk before you pay: what the Silk Mark label means, which hand tests actually help, how to read the zari, and what to put on the bill.

We do not name shops or quote prices. Silk prices depend on the variety, the weight, the weave and especially the zari, so the aim here is to help you judge what you are being sold.

The types of silk you will see

India produces several kinds of natural silk, each with its own look:

• Mulberry silk is the smooth, lustrous silk used in most wedding sarees, including Banarasi and Kanjeevaram styles.
• Tasar (tussar) silk has a rich, slightly textured surface and a natural golden-beige colour.
• Eri silk is soft, matte and warm, sometimes called “peace silk”.
• Muga silk from Assam has a natural golden sheen.

Next to these you will find art silk (artificial silk, usually viscose or polyester), silk blends such as silk-cotton, and fabrics with silk-like names that contain no silk at all. All of them can be good buys if they are sold honestly.

Kota Doria itself is often woven with a mix of cotton and silk; our guide to Kota Doria vs Chanderi vs Maheshwari explains how those weaves differ.

The Silk Mark label

The Silk Mark is a quality assurance label for natural silk, run by the Silk Mark Organisation of India under the Central Silk Board, which is part of the Ministry of Textiles. Sellers who join the scheme as authorised users may attach the label only to products that are pure natural silk.

What to look for:

• A Silk Mark tag or sewn-in label with a hologram and a printed unique number.
• The seller’s details: the number is linked to the authorised user who attached it.
• Label authentication: the Silk Mark Organisation offers a way to check a label number. Use the organisation’s official channels, reached from the Central Silk Board website, and confirm that the number is genuine and matches the shop you are buying from.

A missing Silk Mark does not prove a saree is fake; many genuine silk sarees are sold without it, especially by small weavers. But a label you can verify gives you far more confidence than a salesperson’s word.

Hand checks that help (and their limits)

Experienced buyers use their hands and eyes. These checks are useful, but skilled imitations can pass them, so treat them as clues.

Feel and warmth

Natural silk feels smooth but slightly dry, with a gentle grip when rubbed between fingers. It warms quickly to your touch. Polyester often feels slippery, cool and “plasticky”, and stays cool.

Lustre in daylight

Silk has a soft, shifting shine that changes colour slightly as you move it, because of the triangular structure of the fibre. Synthetic fabrics tend to have a flat, uniform, very white shine. Look at the saree in daylight at the shop door, not only under bright shop lights.

Wrinkle test

Crush a corner in your fist for a few seconds. Silk creases and then slowly relaxes; many polyesters spring back almost immediately with no crease at all.

The ring test

You may hear that a pure silk saree can pass through a finger ring. Very fine silks can, but heavy wedding silks with thick zari cannot, and some fine synthetics can. It is not a reliable test.

The burn test, done safely

The burn test is the most telling home test. Many sellers will allow it on a loose thread; never cut the saree yourself.

1. Take a thread from a loose end, the inside of the fall or a fringe, with the seller’s permission.
2. Hold it with tweezers over a steel plate or ashtray, away from fabric and children.
3. Light it and observe.

Fibre	How it burns	Smell	Residue
Silk	Burns slowly, often stops when taken out of the flame	Burnt hair	Black ash that crushes to powder
Polyester	Shrinks from the flame, melts, may drip	Chemical, plastic	Hard bead you cannot crush
Viscose (art silk)	Burns quickly with a bright flame	Burnt paper	Very little soft ash
Cotton	Burns quickly	Burnt paper	Soft grey ash

Test both a warp and a weft thread if you can: some sarees have a silk warp and a synthetic weft.

Reading the zari

In a wedding saree, the zari border can matter as much as the silk. There are three broad kinds:

• Real zari: silver wire, often coated with gold. It is the most expensive and comes up in old sarees sold for their metal value.
• Tested zari: copper wire with a silver and gold-coloured coating. It looks rich and is far more common today.
• Plastic or metallic zari: polyester film with a metallic finish. It is light and cheap and does not tarnish in the same way.

Look at the back of the border: real and tested zari wires are fine metal; plastic zari often shows a film-like edge. Ask the seller which type it is and have it written on the bill. Do not pay real-zari prices without that in writing.

Handloom or powerloom?

Handwoven silk often shows small irregularities, slightly uneven selvedges and floats on the back of the motifs. Powerloom sarees are very even. Neither is “fake”, but handloom costs more to make. The India Handloom Brand and the Handloom Mark help identify handwoven goods; our guide to the Handloom Mark vs India Handloom Brand explains the difference, and Kota Doria vs power-loom copies shows the same checks on local fabric.

At the counter: the bill

For a costly saree, the bill is your strongest protection. Ask for:

• The fabric (“pure mulberry silk”, “silk-cotton”, “art silk”) in plain words.
• The zari type (real, tested or metallic).
• The Silk Mark label number, if there is one.
• GST details of the seller; our GST number guide shows how to check them.

Keep the label attached until the wedding is over. If the saree turns out not to be what the bill says, go back to the seller first; if that fails, the steps in our consumer complaint guide apply.

Wedding shopping and silk

Silk sarees are usually only one part of a wedding shopping list. Our guide to wedding shopping in Kota covers the wider plan, and blouse stitching tips help you get the blouse right before the date. If you are buying silver or gold the same week, see our silver hallmark guide.

Caring for a silk saree

• Dry clean heavy silks and zari sarees, or wash light silks gently by hand in cold water with a mild detergent.
• Dry in the shade; strong sun fades silk.
• Fold zari borders with a soft cotton cloth between layers and refold every few months to prevent cracks.
• Store in cotton or muslin, not plastic, and keep away from damp walls.

Kota Doria has its own care needs; see how to wash a Kota Doria saree.