Embroidery thread will run through a sewing machine, but it is not designed for it and will cause problems
Embroidery thread is thinner, more delicate, and made from different materials than regular sewing thread. A sewing machine applies tension and speed that embroidery thread cannot handle — it will break frequently, shred, and leave loose loops on the underside of your fabric. You can use it in a pinch for hand sewing or for a single decorative seam, but for regular machine sewing, regular sewing thread is the right choice.
The confusion is understandable: both come on spools and both go through a needle. But they are built for different machines and different purposes. Understanding the difference will save you thread, time, and frustration.
Key Takeaways
- Embroidery thread is too fine and fragile for the tension and speed of a standard sewing machine and will break or shred.
- Embroidery machines use a different needle system, lower tension, and slower speeds than sewing machines.
- If you must use embroidery thread on a sewing machine, reduce tension to the lowest setting and sew slowly, but this is a temporary workaround only.
- Regular sewing thread is inexpensive and designed for the job — using the correct thread prevents skipped stitches, puckering, and breakage.
Why embroidery thread breaks in a sewing machine
Tension is the main culprit. A sewing machine pulls thread through the fabric with significant force to create a locked stitch. Embroidery thread is made to be thinner and more lustrous for visual detail work, which means it has less tensile strength. When the machine pulls with normal tension, the thread snaps.
The second problem is speed. Sewing machines typically run at 800 to 1200 stitches per minute. Embroidery machines run at 400 to 800 stitches per minute. At high speed, the friction and force on delicate embroidery thread cause it to fray and shred before it even reaches the needle.
A third issue is the needle itself. Embroidery needles have a larger eye and a special scarf (the indentation above the eye) to protect fine thread. A standard sewing machine needle has a smaller eye and different geometry. Embroidery thread does not feed smoothly through a sewing needle, and the friction damages it further.
The difference between embroidery and sewing thread
Embroidery thread is typically made from rayon, polyester, or cotton with a high sheen finish. It is wound tightly on small spools because it is used in smaller quantities — a single embroidery project might use only a few feet of thread. The thread is thin so that stitches can be packed closely together for detail and texture.
Sewing thread is made from polyester, cotton, or a blend, and is wound on larger spools because sewing projects consume more thread. It is thicker and has a matte finish. The construction is designed to withstand the repeated pulling and tension of a sewing machine over long seams.
You can see the difference by holding them side by side. Embroidery thread looks almost delicate — it catches light and has a sheen. Sewing thread looks duller and more substantial. If you are unsure which you have, check the label: it will say "embroidery" or "sewing" or sometimes "all-purpose".
What happens if you ignore this and sew anyway
If you load embroidery thread into a sewing machine and sew at normal settings, you will see one or more of these problems within the first few inches:
- The thread breaks in the needle or in the tension discs, and you have to rethread.
- Loops appear on the underside of the fabric because the thread is not feeding evenly.
- The thread shreds and frays, leaving a fuzzy, weak seam.
- Stitches are skipped because the thread is not sitting properly in the needle.
- The seam puckers because the thread cannot handle the tension.
None of these problems mean your machine is broken. They mean the thread is not right for the job.
If you must use embroidery thread on a sewing machine
If you have only embroidery thread available and need to sew, you can make it work for a short seam or a temporary repair by adjusting your machine:
- Reduce tension to the lowest setting (usually 0 or 1 on the dial).
- Reduce speed to the slowest setting, or use the hand wheel to move the needle manually.
- Use a needle designed for embroidery if you have one, or switch to a size 60/8 or 70/10 needle (smaller than standard).
- Test on scrap fabric first.
- Sew slowly and watch for breakage.
This is a workaround, not a solution. The thread will still be more fragile than sewing thread, and the seam will not be as strong. For anything that needs to last — a garment seam, a repair that will be worn, a quilt — use the correct thread.
When embroidery thread is the right choice
Embroidery thread belongs in an embroidery machine or in your hand for hand sewing. If you are doing hand embroidery — adding decorative stitches to a finished garment, monogramming, or creating texture — embroidery thread is exactly what you want. It shows color and sheen beautifully and is straightforward to control by hand.
For hand sewing repairs or seams, embroidery thread works fine because your hand controls the tension and speed. You can use it to sew on a button, repair a seam, or add a decorative running stitch without any of the problems that occur in a machine.
What to buy instead
All-purpose polyester thread is the standard choice for most sewing machines. It works on cotton, blends, and many synthetics, and it is inexpensive. A large spool costs a few dollars and will last through many projects.
Cotton thread is a good choice if you are sewing cotton fabric and prefer a natural fiber. It has less sheen than polyester and a slightly different feel, but it performs well in a sewing machine.
Serger thread is thinner than regular sewing thread and designed for serger machines, but some sewers use it in regular machines for delicate fabrics. It is not the same as embroidery thread and will not have the same problems.
For most projects, buy all-purpose thread in colors that match your fabric. It is reliable, affordable, and designed for the job your sewing machine does.
Frequently Asked Questions
Can I use embroidery thread in the bobbin?
No. The bobbin holds thread under tension just like the top thread, and embroidery thread will break or shred in the bobbin as well. Use regular sewing thread in both the top and bobbin.
Will embroidery thread damage my sewing machine?
It will not damage the machine itself, but it may leave lint and shreds in the tension discs and needle area. If you do use embroidery thread, clean out the lint afterward with a small brush. The machine will be fine.
What if I want decorative stitches with a sewing machine?
Use regular sewing thread. Many sewing machines have built-in decorative stitch patterns that look beautiful with standard thread. If you want the sheen and color of embroidery thread, hand embroider over the finished seam instead.
Is there a type of embroidery thread that works in sewing machines?
No. All embroidery thread is designed for embroidery machines or hand work. If a thread is labeled embroidery thread, it is not meant for a standard sewing machine, regardless of the fiber or brand.
Can I mix embroidery thread with regular thread?
You could use embroidery thread in the bobbin and regular thread on top, or vice versa, but there is no practical reason to do so. It will not improve the seam and will create the same tension and breakage problems. Use the same type of thread top and bottom.