Silk is an amazing fabric, and humans have been trying to copy its properties ever since they first saw a silkworm spin its thread. It’s the queen of fabrics, but with that high quality comes a higher price, and so people are always trying to use all sorts of strategies trick you into buying various kinds of fake silk.
Unfortunately, unlike in life, you can’t fake it til you make it with silk. While you can’t always tell for certain just from an online listing if it’s real silk, there are a few pre and post purchase tricks you can use to tell if something is genuine silk.
Satin Doesn’t Mean Silk: One of the most common tricks used to sell silk imitations is to call it “silky satin”. The thing is, satin is a weaving technique. It has nothing to do with the material, so unscrupulous companies can take a cheap, artificial fabric, use a satin weave, and sometimes trick people into buying it, believing it's actually real silk. Don’t fall prey to that simple trick! Unless it directly says “Silk” or "Silk Satin", it’s probably not silk.
Price, Price, Baby: Although some companies (like MYK!) can sell silk at an affordable price, there’s a hard limit to how low you can price a silk item and still make a profit. The cost of making real silk items is more than 10x the price of making a silk substitute. If that silk robe or silk cami only costs $10 to $20 and it isn’t from some kind of going out of business sale, you’re probably looking at something that isn’t real silk.
Appearance: While it can sometimes be difficult to tell based on a store page's photos, especially with Photoshop, there are some clear differences in appearance between real silk and fake silk. Real silk threads are triangular and covered in sericin, which make the silk have a multicolored sheen.
In other words, silk’s coloration won’t look as solid as fake silk’s - real silk shimmers rather than shines. On the other hand, fake silk will have a white sheen at all angles. It will also hang more stiffly on the model or person wearing it - real silk drapes over the person wearing it and usually fits their contours better than fake silk.
Touch it: While a lot of fake silks can feel somewhat like silk, or at least a lot smoother than other fabrics, there are a couple of ways to tell if what you’re touching is pure silk. First off, if you bunch up silk in your hand, it will make a crunching sound sort of similar to someone walking through snow. In addition, if you rub it with your fingers, real silk will become warm, while a fake silk will not change in temperature.
Put a ring on it: One of the more interesting traditional methods to tell if something is silk uses a ring. You simply take a ring and try to pull the fabric in question through the ring. Silk will smoothly and quickly slide through, while an artificial fabric won’t: they’ll bunch up and sometimes even get slightly stuck on the ring.
Do note that this is going to be a bit dependent on the thickness of the fabric: an extremely thick silk may be harder to pull through a ring, but in general this method is quite successful at finding fakes.
Playing (CAREFULLY) with Fire: While a lot of these methods require a discerning eye and aren’t completely foolproof, there’s one surefire way to tell if something is fake silk or real silk: trying to set a small piece of it on fire. While we don’t recommend burning an entire piece of clothing to find out if it’s silk, it’s possible to very carefully pull out a single thread from your garment, then even more carefully try to burn it with a lighter.
Real silk will slowly burn while exposed to the flame, won’t catch fire, will smell like burning hair while touching the flame, but will stop burning almost immediately when the flame is removed. Fake silk, on the other hand, will melt into beads, smell like burning plastic, and can also catch fire, continuing to burn when you remove the flame!
Again, be very careful if you decide to employ this test, because fake silk can burn surprisingly quickly when exposed to an open flame. We can't take responsibility if you accidentally set yourself on fire - make sure you have some water handy!
Is silk bedding pilling?
I paid impressive prices on bedsheets from China and the 100% mulberry silk 22 momma is pilling grossly.
Is it fake, how would you know for sure?
Thanks for responding!
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This is very useful but silk literally originated from China, folks. Let’s try not to be an ignorant xenophobe when discerning fabrics.
I am always looking for fake silk and thanks for this blog. I do not want to trouble silk worms to look beautiful. So I am looking only for genuine fake silk
Thanks for valuable information as today everyone is being fooled by seeing only label naming pure silk
Another surefire way of knowing if its fake or real is to check the listing location. If it says China then its likely to have a 99.999999999999998% of being fake. That goes with just about anything with the word China on it. They all claim to be real, they all charge different prices, but they are always fake.
Hello, thank you for all the very useful information. I am trying to buy real silk online and wanted some useful information on making sure I buy real 100% silk. However I did wish to say that for the last step you should first warn to have water or a fire extinguisher ready before giving the instructions. For those who eagerly start before reading the entire portion.
I would suggest using metal tweezers if burning a thread of any type of fabric.