What is eri silk?
Eri silk is spun from the cocoons of Samia ricini, a castor-fed silkworm raised in Assam and Meghalaya. The moth emerges and completes its life cycle before the cocoon is processed, which breaks the filament and means the fibre is spun rather than reeled.
That one processing fact explains everything that follows.
Why it does not behave like silk
Reeled silk is a single continuous filament, which is where lustre and slip come from. Spun silk is short staple fibre twisted together, like wool or cotton.
So eri is matte. It has body rather than drape. It insulates. It has a slight irregularity of surface that reads as texture rather than as flaw. People who expect silk to mean shiny are usually surprised, and a decent number of them prefer it once they have handled it.
It also wears extremely well. Eri is strong and elastic, and an eri shawl that gets used daily looks better at three years old than a mulberry silk one does at one.
Peace silk, honestly assessed
The term ahimsa silk or peace silk is used loosely across the industry, sometimes for mulberry silk where the moth is allowed to emerge as a deliberate choice. With eri, it is simply how the fibre has always been made. There is no premium process and no certificate involved: the filament is broken because the moth left, and it is spun because a broken filament cannot be reeled.
If the ethics of silk matter to you, this is the one where the claim holds up without needing a document. Muga and pat are both reeled from intact cocoons, which is set out plainly in the three silks of Assam.
Colour
Natural eri runs from off-white through cream to a pale brick, depending on the worm’s diet and the batch. It takes natural dye well and chemical dye too.
We sell it undyed, and that is a preference rather than a rule. The variation between batches is the interesting part, and every additional process is another step where the supply chain gets harder to describe truthfully.
What to look for when buying
- Handle it if you can. Spun eri has a faint fuzz to the surface. A smooth, cool, shiny fabric sold as eri is something else.
- Look at the ends. Handwoven eri has a finished or knotted fringe with slight variation. Machine-cut edges with an overlock stitch are a different product.
- Ask where it was spun and woven. Eri is spun in Assam and Meghalaya. Somebody selling it should be able to name a district.
For the international buyer
A good deal of eri leaves Assam as unbranded fibre and reappears in Europe and Japan as “peace silk” with no mention of where it came from. If you found this page searching for ahimsa silk rather than for Assam, that is the reason.
What we have not verified
We have not visited an eri spinning household ourselves yet. What is written here about the fibre comes from handling the cloth and from weavers and sellers, and the species and process facts are sourced below. The spinning trip is scheduled.
Related reading
Common questions
- What is eri silk?
- Eri silk is a spun silk from the castor-fed silkworm Samia ricini, produced mainly in Assam and Meghalaya. The moth leaves the cocoon before the silk is taken, so the filament is broken and has to be spun rather than reeled.
- Why is eri called peace silk or ahimsa silk?
- Because the silkworm completes its life cycle and emerges before the cocoon is processed. No moth is killed. The name describes the actual production method rather than a certification scheme.
- Does eri silk feel like other silk?
- No. Because the yarn is spun rather than reeled, eri is matte rather than lustrous, slightly textured, and warm. In hand it is closer to a fine wool than to a mulberry silk scarf.
- Is eri silk warm enough for winter?
- A good eri shawl is genuinely insulating and is worn through the Assam winter. It will not replace a heavy wool coat in a cold climate, but it is far warmer than the word silk suggests.
References
Written by
Kundan GuptaWrites from Assam. Checks fares and fees in person before publishing.
Kundan Gupta runs Axomor and edits its Northeast India coverage. He is responsible for the accuracy of the guides published here, including checking permit rules, fees and travel logistics against primary sources before they go live.