How to tell if a pattu saree is pure silk

Why no single test is enough

Sarees sold as pure pattu are sometimes silk blended with art silk, or woven with a synthetic zari that looks identical to the real thing under shop lighting. There is no single home test that catches every version of this — a saree can pass one check and fail another. The honest approach is to use several checks together and weigh what they add up to, rather than trust any one of them completely.

The Silk Mark hologram

Silk Mark is a hologram sticker issued by the Silk Mark Organisation of India, certifying that the fabric is tested and contains natural silk. Look for it stitched near the fall — the inner edge folded under at the bottom — rather than on the pallu, since that is where it is usually attached without disturbing the visible saree.

Treat it as a good sign, not the end of the conversation. A hologram can, in principle, be copied, and plenty of genuine handloom sarees — especially older weaves or smaller weaver-direct pieces — are sold without one at all. Presence helps; absence alone does not settle the question.

The burn test — done properly

This is the test people ask about most, and the one most often done wrong. It works by pulling a few threads and burning a very small sample: pure silk burns slowly, curls away from the flame, smells like burnt hair, and leaves a soft dark bead of ash that crumbles between the fingers. Synthetic fibre — polyester, most art silk, nylon zari — melts instead of burning, smells like burning plastic, and leaves a hard bead that does not crumble.

Be clear about what this test costs: it destroys the thread. Never pull it from the pallu or any visible part of the saree. Take it only from a spare end at the fall or the inner hem — the small excess left over from the weave — so the loss is never seen once the saree is worn. If a shop will not let you test a spare thread, that itself tells you something.

Even done correctly, a blend can give a mixed result — part curl, part melt — because it is part silk and part something else. That is useful information, not a failure of the test; it tells you the saree is not pure, even if it is not entirely synthetic either.

Zari — real, tested, or imitation

Traditional zari is a fine thread of silver, electroplated with gold. It has some genuine weight, a hand that is slightly rough rather than glass-smooth, and it does not turn dull grey or black quickly with ordinary wear. Imitation zari — a metallic-coated polyester thread — feels papery and light, is often too perfectly shiny, and tarnishes faster.

Tested zari — genuine silver thread with a thinner gold wash — sits between the two, and telling it apart from either end by eye alone is genuinely difficult. This is one check worth asking the shop about directly rather than trying to settle at home: a shop that deals honestly in pattu will tell you plainly whether the zari on a given saree is real, tested, or imitation.

Weight and drape

Pure silk has a certain heft in the hand and falls in soft, fluid folds rather than standing stiff. Scrunch a corner loosely in your fist and let go: pure silk springs back with gentle, rounded creases, while many art-silk and blended sarees hold a sharp, stiff crease and feel lighter than their size suggests.

Weight alone can mislead, though — a saree can be made heavier by dense zari work or a thicker weave without being any purer, and a genuinely fine, light silk can feel deceptively delicate. Use it alongside the drape, not instead of it.

The selvedge

The selvedge is the tightly finished edge running along the length of the saree, where the weft turns back on itself. On handloom pure silk it is usually a little irregular — tightly bound but not machine-perfect, sometimes with small woven ties visible. Power-loom and synthetic-blend sarees more often show a flawless, glossy, dead-straight selvedge. It is a supporting clue, useful alongside the others, not a test to rely on by itself.

Buy from someone who will show you, not just tell you

Because no single test settles the question, the most reliable check is the shop itself — one that shows the Silk Mark without being asked twice, hands over a spare thread for a burn test without hesitation, and can explain plainly what weave you are looking at and why. Compare the major weaves — Kanchipuram, Dharmavaram, Gadwal, Uppada, Venkatagiri and Kuppadam — on the pattu saree weave guide, and see the specific silks for the muhurtham on the muhurtham sarees page.

There is no substitute for seeing and holding the cloth yourself. If you are within reach of Narsipatnam, come and feel the weight and the fall in your own hands before you decide — see the full wedding checklist to know what else to bring on the same trip.