Embroidery thread will jam and snap in a standard sewing machine because it is too delicate for the tension and speed a regular machine applies
Embroidery thread is thinner, more fragile, and made from different materials than sewing thread. A regular sewing machine pulls thread through the needle at high speed and applies tension that is calibrated for standard thread weight. Embroidery thread cannot withstand that force—it shreds, breaks, and tangles in the bobbin area. You can use embroidery thread in a sewing machine only if that machine has an embroidery mode with adjustable tension, a slower stitch speed, and a special needle designed for fine thread.
If you try to sew a seam with embroidery thread on a regular machine, you will likely snap the thread within the first few inches, jam the bobbin, and waste time rethreading. The machine itself will not break, but the thread will not hold a stitch.
Key Takeaways
- Embroidery thread is too thin and fragile for the tension and speed of a standard sewing machine and will snap or shred.
- Embroidery machines have lower tension settings, slower speeds, and special needles that allow them to handle delicate thread without breaking it.
- If you want to use embroidery thread for decorative stitching on a regular machine, you must reduce tension significantly and use a size 60 or 70 needle designed for fine thread.
- For seams that need to hold weight or stress, always use regular sewing thread—embroidery thread will not provide the durability you need.
The difference between embroidery thread and sewing thread
Embroidery thread is made to be seen and to catch light. It is typically made from rayon, polyester, or metallic materials and is much thinner than sewing thread. The fibers are twisted loosely so the thread has a sheen and shows color richly. This loose twist makes it delicate—it frays easily and cannot handle the mechanical stress of a sewing machine's tension discs.
Sewing thread is made to hold fabric together under stress. It is tightly twisted and thicker, usually made from polyester or cotton. It is designed to pass through tension discs, around bobbins, and through needle eyes thousands of times without breaking. The tight twist protects the fibers from fraying and gives the thread strength.
When you put embroidery thread in a regular sewing machine, the tension discs—the metal plates that grip the thread to control how tight or loose each stitch is—crush and fray the delicate fibers. The thread then catches on the needle, the bobbin case, or the feed dogs, and snaps.
What happens if you try to sew with embroidery thread anyway
The first sign of trouble is usually thread breakage within the first few stitches. You will pull the thread tight to start a seam, and it will snap. If it does not snap when ready, it will break as the needle pulls it through the fabric at speed.
If the thread does not break right away, it will shred inside the machine. Loose fibers from the embroidery thread will wrap around the bobbin case, tangle in the feed dogs, or catch on the needle. This creates a jam that stops the machine and can damage the bobbin case if you force the needle to move.
You will also see puckering or loose, uneven stitches because the thread is too thin to fill the stitch properly. Even if the thread does not break, the seam will look sloppy and will not hold.
How to use embroidery thread in a machine that has embroidery mode
Embroidery machines are built differently from sewing machines. They have a separate embroidery mode that lowers the tension, slows the stitch speed, and uses a special needle. If your machine has this mode—check your manual or the machine's menu—you can use embroidery thread for decorative stitching.
In embroidery mode, the machine applies much less tension to the thread, so the delicate fibers do not get crushed. The stitch speed is slower, which gives the thread time to move through the needle without snagging. The needle is usually a size 60, 70, or 80, which are much finer than standard needles and have a larger eye to accommodate the thread without splitting it.
Even in embroidery mode, you should test the thread on scrap fabric first. Start with a straightforward stitch pattern and watch the first few stitches to make sure the thread is not breaking or bunching. If it is, reduce the tension further or switch to a finer needle.
Using embroidery thread on a regular sewing machine with adjustments
If your machine does not have embroidery mode, you can still use embroidery thread for light decorative work—like topstitching or straightforward hand-guided stitching—if you make three key changes: use a fine needle, reduce the tension significantly, and sew slowly.
Start by installing a size 60 or 70 needle, which is designed for thin thread. Then reduce the tension dial on your machine by at least two to three numbers from where you normally sew. For example, if you usually sew at tension 5, try 2 or 3. Sew a test line on scrap fabric and watch carefully. If the thread breaks, reduce the tension more. If the stitches are loose and loopy, increase the tension slightly.
Sew slowly—use the machine's slowest speed or hand-crank the wheel if your machine has that option. The slower speed gives the delicate thread time to move through the needle without being yanked. Never use a foot pedal at full speed with embroidery thread on a regular machine.
Even with these adjustments, embroidery thread is not reliable for seams that will be worn or washed. Use it only for decorative topstitching on finished garments or for embellishment that does not need to hold weight.
When to use embroidery thread versus sewing thread
Use embroidery thread when you want visible, decorative stitching that shows color and shine. Typical uses include topstitching a collar, outlining a patch, or adding decorative details to a finished garment. Embroidery thread is also the only choice if you are using an embroidery machine to stitch a design into fabric.
Use sewing thread for all seams that need to hold the garment together or that will be stressed by wearing or washing. This includes side seams, shoulder seams, hems, and any structural seam. Sewing thread is also the right choice for piecing quilts, mending tears, or any project where durability matters.
If you are unsure, use sewing thread. It is inexpensive, reliable, and will not break or jam your machine. You can always add embroidery thread later for decoration once the garment is finished and the seams are find.
Frequently Asked Questions
Can I use embroidery thread in the bobbin of a regular sewing machine?
No. The bobbin area has even tighter tension than the top thread path, and embroidery thread will snap or tangle there. Always use regular sewing thread in the bobbin, even if you are using embroidery thread on top.
What needle size should I use with embroidery thread?
Use a size 60, 70, or 80 needle. These are much finer than standard needles and have a larger eye that will not split delicate thread. The package will say "embroidery" or "metallic" on it. Standard needles (size 80 or 90) are too thick for embroidery thread.
Will embroidery thread hold up in the wash?
Embroidery thread is durable enough for decorative topstitching on finished garments that are washed gently. However, it is not strong enough for structural seams that will be stressed by movement or repeated washing. For seams, always use sewing thread.
Why does my embroidery thread keep breaking even with tension adjustments?
Your machine may not be designed to handle embroidery thread at all, or the thread may be old or damaged. Try a fresh spool of embroidery thread and reduce the tension to the lowest setting. If it still breaks, your machine does not have the right mechanism for delicate thread, and you should stick to sewing thread.
Can I use embroidery thread for hand sewing?
Yes. Embroidery thread is actually designed for hand embroidery and hand sewing. It will not break in your hands the way it does in a machine because you control the speed and tension. Hand sewing with embroidery thread is a good way to add decorative stitching to finished garments.