# Best Embroidery Machine Thread for Beginners (What to Buy)

> Which machine embroidery thread to buy first: why 40 wt is standard, polyester vs rayon vs cotton vs metallic, the right bobbin thread, and a starter color…

- Source: https://embroiderywise.com/posts/best-embroidery-thread-for-beginners/
- Markdown version: https://embroiderywise.com/posts/best-embroidery-thread-for-beginners.md
- Last updated: 2026-10-07

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- Best embroidery thread for beginners: weight, fiber and bobbins explained

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# Best embroidery thread for beginners: weight, fiber and bobbins explained
  Updated October 7, 2026 By [EmbroideryWise Editorial Team](https://embroiderywise.com/about/) [How we research](https://embroiderywise.com/how-we-research/)

Prices are approximate and change often, so check the current price before you buy.

## Key takeaways

- 40 wt is the standard top thread weight for machine embroidery designs.
- Polyester is the safest first choice for items that get washed often; rayon gives high sheen.
- Use a lighter embroidery bobbin thread, not your top thread, in the bobbin.
- Prewound bobbins must match your machine; Brother’s PWB350 is listed for Brother embroidery-only machines.
- Leave metallic and cotton thread until you have the basics working.

### On this page 10 sections

- [What weight of embroidery thread should you buy?](#what-weight-of-embroidery-thread-should-you-buy)
- [Polyester vs rayon vs cotton vs metallic](#polyester-vs-rayon-vs-cotton-vs-metallic)
- [What thread goes in the bobbin?](#what-thread-goes-in-the-bobbin)
- [How many colors should you start with?](#how-many-colors-should-you-start-with)
- [Which needle goes with which thread?](#which-needle-goes-with-which-thread)
- [Thread problems that aren’t the thread’s fault](#thread-problems-that-arent-the-threads-fault)
- [Which thread should you use for each project?](#which-thread-should-you-use-for-each-project)
- [What to buy first](#what-to-buy-first)
- [What to buy](#what-to-buy)
- [FAQ](#faq)

## Before you choose

- [Embroidery machine needles: sizes, ballpoint vs sharp, and when to change them](https://embroiderywise.com/posts/embroidery-needles-guide/)
- [Embroidery thread color matching: how to get the colors you see on screen](https://embroiderywise.com/posts/embroidery-thread-color-matching/)
- [Why does my embroidery thread keep breaking? Causes and fixes](https://embroiderywise.com/posts/embroidery-thread-breaking/)

Start with 40 wt polyester embroidery thread: Brother’s manual calls for 40-weight rayon or polyester for most embroidery, and polyester is colorfast even with chlorine bleach. Pair it with the bobbin thread your manual specifies (Brother’s bobbin case is set for 90 weight) or prewound bobbins made for your exact machine. Buy a modest starter range of colors, then add shades as your projects need them.
Thread is the part of embroidery people see, so it’s tempting to buy a giant box of colors right away. Before color, though, two choices matter more: the weight of the top thread and what goes in the bobbin. Get those right and almost any brand of embroidery thread will work on a home machine.

This guide covers the standard weight, how polyester, rayon, cotton and metallic compare, bobbin thread and prewound bobbins, and how to build a starter color range without overbuying.

## What weight of embroidery thread should you buy?

Buy 40 wt. Brother’s manual says that for most embroidery applications, the upper thread should be 40-weight rayon or polyester embroidery thread. Sulky’s thread guide calls 40 wt rayon the standard that most digitizers use, and Madeira recommends #40 Polyneon for general use.

That matters because designs are digitized for a thread thickness. A design’s stitch spacing assumes 40 wt coverage, so a much thicker thread can crowd and break, and a much thinner one can leave gaps. Thread weight numbers run backward: the higher the number, the finer the thread.

## Polyester vs rayon vs cotton vs metallic

| Thread | Look | Strengths | Watch out for | Beginner verdict |
| --- | --- | --- | --- | --- |
| Polyester (40 wt) | Bright sheen | Colorfast even with chlorine bleach (Madeira, Isacord, Sulky); Isacord is described as twice the strength of rayon | Sheen varies by brand | **Start here** |
| Rayon (40 wt) | High sheen, vibrant color (Madeira) | Sulky calls 40 wt rayon the digitizing standard | Sulky: wash without chlorine or optical brighteners; Madeira lists old rayon as a cause of breaks | Good second set |
| Cotton | Matte (Madeira, Sulky) | Natural look for heirloom work | Sulky: fuzzes and shrinks slightly | Skip for now |
| Metallic | Metallic shine | Accents and holiday designs | Sulky: 90/14 needle, slower speed, lower tension | Skip until basics work |

### Polyester

Polyester is the safest first thread. Madeira describes it as durable and colorfast, and says its Polyneon resists chlorine bleach and suits uniforms. OESD says Isacord is 100% polyester, 40 wt, colorfast to detergent, chlorine bleach and light, and has twice the strength of rayon.

Choose polyester if you’re stitching kids’ clothes, towels, uniforms or anything that will be washed hard.

### Rayon

Rayon is known for sheen. Madeira describes it as high sheen and vibrant color, and Sulky notes it is colorfast with detergents that don’t contain chlorine or optical brighteners. Madeira lists old rayon thread among the causes of thread breaks, so don’t buy more than you’ll use.

Choose rayon if you want maximum shine on items that won’t see bleach, such as wall hangings or decor.

### Cotton

Cotton gives a matte, natural look that Madeira suggests for heirloom work. Sulky notes it fuzzes and shrinks slightly. It’s a specialty thread, not a starter thread.

### Metallic

Metallic thread is the hardest to run. Sulky recommends a 90/14 needle, slowing down, lowering top tension one or two numbers, a vertical spool pin with a felt pad, and avoiding stiff, coarse stabilizers. Madeira also advises the least tension possible and a reduced speed.

Skip metallic until you can stitch regular designs without thread breaks.

## What thread goes in the bobbin?

Use an embroidery bobbin thread, not your top thread. Bobbin thread is lighter so the back of the design stays flat and doesn’t build bulk.

Brother’s manual says to use the included embroidery bobbin thread or a recommended embroidery bobbin thread, and that the included bobbin case is set for 90 weight bobbin thread. Sulky’s guide describes its Bobbin thread as 60 wt spun polyester. Those are different weights from different makers, so use the weight your manual names. If your machine is set up for one weight and you switch to another, you may need to adjust tension.

Brother lists using a non-recommended bobbin thread as one cause of upper thread breaks. White bobbin thread works for most designs; black is useful for dark fabrics where the back may show.

### Prewound bobbins or bobbin thread on a spool?

Prewound bobbins save time. Madeira says prewound bobbins give consistent tension, and that filament bobbin thread produces minimal lint while spun thread produces more.

The catch is fit. Bobbins come in different sizes, and a prewound bobbin must match your machine. Brother lists its PWB350 prewound bobbins as size 11.5, 90 weight, 78/2 polyester, “Designed for use in Brother embroidery-only machines.” Brother doesn’t make that claim for combo machines on that page, so if you own a sewing-and-embroidery combo, check your manual or Brother’s accessory list before buying.

Buy bobbin thread on a spool if you’re not sure of your bobbin class yet. You can wind it onto the bobbins that came with the machine.

## How many colors should you start with?

You don’t need every color. Start with a modest set of 40 wt polyester that covers:

- **Black and white**: outlines, lettering and highlights in almost every design.

- **A gray and a brown**: shading, animals and neutral text.

- **Primary and secondary colors**: red, blue, yellow, green, orange, purple.

- **A light and dark version** of the colors you use most.

- **Pink and a skin-tone range** if you stitch characters or kids’ designs.

Then buy by project. When a design calls for a shade you don’t have, buy that spool. This builds a collection around what you actually stitch.

Stick to one brand at first. Shade numbers differ between brands, and conversion between them is approximate. The [thread color matching guide](https://embroiderywise.com/posts/embroidery-thread-color-matching/) explains why, and the [thread palette tool](https://embroiderywise.com/tools/thread-palette/) helps you plan colors before you shop.

### Check before you buy a thread set

- It says **embroidery thread** and **40 wt**, not all-purpose sewing thread.

- The spool size fits your machine’s spool pin.

- The brand sells individual spools in the same line, so you can replace colors.

- The set includes a printed or downloadable color chart with shade numbers.

## Which needle goes with which thread?

Brother recommends a 75/11 needle for most embroidery and a 90/14 if the machine isn’t stitching well on heavy fabric. Sulky recommends 90/14 for metallic thread. Schmetz describes its embroidery needles as having an enlarged eye and wide groove for rayon, polyester and specialty threads. The [embroidery needles guide](https://embroiderywise.com/posts/embroidery-needles-guide/) has a full fabric-to-needle table.

## Thread problems that aren’t the thread’s fault

Thread often gets blamed for problems that start elsewhere. Brother lists incorrect threading, knots or tangles, upper tension that’s too tight, a bent or dull needle and a non-recommended bobbin thread as causes of upper thread breaks. Madeira adds burrs in the thread path, poor digitizing and missing backing.

Before you switch brands, rethread the machine, change the needle and check your bobbin. See [embroidery thread breaking](https://embroiderywise.com/posts/embroidery-thread-breaking/) and [bobbin thread showing on top](https://embroiderywise.com/posts/bobbin-thread-showing-on-top/) for step-by-step fixes.

## Which thread should you use for each project?

Use this as a quick decision table, built from the maker guidance above.

| Project | Thread | Why |
| --- | --- | --- |
| Kids’ clothes, towels, uniforms | 40 wt polyester | Colorfast even with chlorine bleach (Madeira, OESD) |
| Everyday T-shirts and sweatshirts | 40 wt polyester | Durable through frequent washing |
| Wall hangings, framed pieces, decor | 40 wt rayon or polyester | Rayon’s sheen shows well where bleach isn’t a concern |
| Heirloom or vintage-style work | Cotton | Matte look (Madeira) |
| Holiday accents, highlights | Metallic, in small areas | Needs a 90/14 needle and slower speed (Sulky) |
| Freestanding lace | Same thread in top and bobbin | Urban Threads recommends matching bobbin and top thread so both sides look finished |

Freestanding lace is the main exception to the light-bobbin rule, because both sides of the lace are visible.

## What to buy first

- **A 40 wt polyester embroidery thread set** with a basic color range.

- **Embroidery bobbin thread** in the weight your manual names, or prewound bobbins that match your machine.

- **75/11 embroidery needles**, plus a few ballpoints for knits.

The [embroidery supplies checklist](https://embroiderywise.com/posts/embroidery-supplies-checklist/) puts thread in order with stabilizer, tools and everything else. Browse more supply guides in the [supplies topic](https://embroiderywise.com/guides/).

## What to buy

The supplies this guide calls for, with what to check before buying. Prices change often — confirm with the seller.

- **[40 wt polyester embroidery thread set](https://www.amazon.com/s?k=40+wt+polyester+embroidery+thread+set&tag=room4205-20)** — A starter range of colors in the weight most home designs are digitized for.

- **[Embroidery bobbin thread or prewound bobbins](https://www.amazon.com/s?k=embroidery+bobbin+thread+white&tag=room4205-20)** — Lighter bobbin thread keeps the back of the design flat and reduces bulk.

- **[Embroidery needles (75/11)](https://www.amazon.com/s?k=embroidery+machine+needles+75%2F11&tag=room4205-20)** — Embroidery needles have a larger eye and groove that protect rayon and polyester thread at speed.

## Don't guess. Calculate.

- [🧵 Machine Finder](https://embroiderywise.com/tools/machine-finder/): which machines fit your projects
- [▱ Hoop Fit Checker](https://embroiderywise.com/tools/hoop-fit/): will your design fit the field
- [◷ Stitch Time Calculator](https://embroiderywise.com/tools/stitch-time/): how long a design takes to stitch
- [📊 Compare every machine](https://embroiderywise.com/machines/): sortable spec table

## Frequently asked questions

### What weight thread is used for machine embroidery?
40 wt for the top thread in most designs. Brother’s manual calls for 40-weight rayon or polyester embroidery thread for most embroidery applications.

### Is polyester or rayon better for beginners?
Polyester is the more forgiving choice for items that get washed often, because Madeira and OESD describe it as colorfast even with chlorine bleach. Rayon has more sheen but Sulky notes it should be washed without chlorine or optical brighteners.

### Can I use regular sewing thread for machine embroidery?
It isn’t what designs are made for. Embroidery thread is made for high-speed embroidery and sheen, and Brother’s manual specifies embroidery thread for the top and embroidery bobbin thread for the bobbin.

### Do I need special bobbin thread?
Yes. Use the bobbin thread your manual recommends; Brother says its included bobbin case is set for 90 weight bobbin thread.

### Will any prewound bobbin fit my machine?
No. Prewound bobbins come in different sizes, so match the bobbin to your machine. Brother lists its PWB350 as size 11.5 and designed for use in Brother embroidery-only machines.

## Sources

- [Brother manual: Thread recommendations](https://support.brother.com/g/s/hf/htmldoc/hsm/om/888p6x/en/06_09_01.html)
- [Sulky Thread & Needle Guide (PDF, 2010)](https://blog.sulky.com/wp-content/uploads/2015/01/Thread-and-Needle-Guide.pdf)
- [Madeira: Embroidery, sewing and quilting thread differences](https://www.madeirausa.com/blog/embroidery-sewing-quilting-thread-differences.aspx)
- [Madeira: Polyneon polyester thread](https://www.madeirausa.com/polyneon/)
- [OESD: Facts about Isacord embroidery thread](https://support.oesd.com/article/51-facts-about-isacord-embroidery-thread)
- [Sulky: How to sew with metallic thread](https://blog.sulky.com/how-to-sew-metallic-thread-faqs-with-patti-lee/)
- [Madeira: Using metallic thread](https://www.madeirausa.com/services/troubleshooting/using-metallic-thread/default.aspx)
- [Brother PWB350 prewound bobbins](https://www.brother-usa.com/p/threads-spools-stands/PWB350)
- [Madeira: 7 questions about bobbins](https://www.madeirausa.com/education/blog/7-questions-every-embroiderer-needs-to-know-about-bobbins/default.aspx)
- [Madeira: Fraying and breaking thread](https://www.madeirausa.com/services/troubleshooting/fraying-breaking/)
- [Schmetz: Embroidery needles](https://www.schmetzneedles.com/products/embroidery-needles)
- [Urban Threads: Freestanding lace embroidery](https://urbanthreads.com/blogs/projects/freestanding-lace-embroidery)
- [Brother manual: List of symptoms](https://support.brother.com/g/s/hf/htmldoc/hsm/om/888p6x/en/09_05_07.html)

[🧵 Not sure which fits? Find your embroidery machine in 60 seconds.](https://embroiderywise.com/tools/machine-finder/)[📊 Compare every machine Sortable chart of all beginner machines.](https://embroiderywise.com/machines/)

## Keep reading
[Buying advice
### Embroidery machine needles: sizes, ballpoint vs sharp, and when to change them
A plain-English guide to embroidery machine needles: when to use 75/11 or 90/14, ballpoint vs sharp, titanium needles, and how often to change your needle.
 Updated Oct 7, 2026](https://embroiderywise.com/posts/embroidery-needles-guide/)[Buying advice
### Embroidery thread color matching: how to get the colors you see on screen
How to match embroidery thread colors: why screens mislead, why no hex-to-spool converter is exact, how DST files lose color, and a reliable shade card workflow.
 Updated Oct 7, 2026](https://embroiderywise.com/posts/embroidery-thread-color-matching/)[Buying advice
### Why does my embroidery thread keep breaking? Causes and fixes
Top thread breaking or shredding while you embroider? Work through threading, tension, needle, thread age, burrs and digitizing in order, with sources.
 Updated Oct 7, 2026](https://embroiderywise.com/posts/embroidery-thread-breaking/)