The honest problem with Banarasi silk is that a good copy is genuinely beautiful. Art silk — viscose or polyester filament — takes a zari weft well, drapes softly under shop lighting and photographs superbly. The difference shows up in the third year, not the first hour, which is precisely why buyers get caught.
Here is the sequence we use on our own incoming lots. It takes about a minute and needs nothing you cannot carry in a pocket.
1. The burn test, done properly
Ask for two or three threads from the fallu edge — any honest seller will give them. Real mulberry silk is protein. It burns reluctantly, smells like singed hair, and leaves a brittle black bead you can crush to powder between your fingers.
Viscose burns fast and smells of burning paper, leaving soft grey ash. Polyester melts rather than burns, curls away from the flame and leaves a hard plastic bead you cannot crush. The bead is the tell: crushable means silk, hard means synthetic.
2. Look at the back, not the front
Turn the saree over. A genuine handwoven Banarasi shows floating weft threads across the back of every motif, cut and finished by hand — irregular, slightly untidy, unmistakably human. A power-loom reproduction has a clean, mechanically uniform reverse, often with the pattern jacquard-woven straight through with no floats at all.
If the back of the saree looks as tidy as the front, someone else did the tidying — a machine.— Vastra weaving floor, Varanasi cluster
3. Test the zari
Traditional kadhua zari is silver wire, gold-plated, wound on a silk core. Modern "tested zari" is the accepted commercial standard. Cheap imitation zari is metallised polyester film.
- Rub a zari thread firmly between thumb and forefinger for a few seconds. Imitation zari sheds its coating and shows a dull grey or white plastic core.
- Pull a single zari thread out and unwind it. Real zari reveals a silk or cotton core underneath the metal; film zari is metal all the way through and tears rather than unwinds.
- Weight is a clue. Real zari is heavy. A six-yard saree with dense zari work that feels light in the hand is telling you something.
4. Read the selvedge and the count
Handwoven Banarasi is typically 45 to 47 inches wide with a slightly uneven selvedge and small, forgivable irregularities in the weft. A perfectly straight selvedge across six yards is a power-loom signature. None of this makes a power-loom saree bad — it makes it a different product at a different price.
5. Ask for the paperwork
The Silk Mark label, issued under the Central Silk Board, certifies pure natural silk. The Handloom Mark certifies that the cloth was woven on a handloom. Neither is decorative — both are traceable to an issuing authority, and a seller who cannot produce either while claiming both is worth walking away from.
On our own Banarasi range the product page states the fibre, the zari type, the weave and the cluster the piece came from. If any of those are missing from a listing anywhere, ask before you pay — the answer, or the silence, tells you what you need to know.
