How to Prepare Raw Wool Before Using Wool Combs or Hackles

There's a particular satisfaction in working with a fleece you've prepared yourself — knowing exactly where it came from, how it was washed, and what you removed before it ever touched the tines. But if you've ever loaded raw wool straight onto combs or a hackle without preparing it first, you've probably felt the difference: the fiber drags, the tines clog, and the preparation is uneven no matter how carefully you work. The tools aren't the problem. The fleece just wasn't ready.

Before wool can be combed or hackled for spinning yarn on a Turkish drop spindle, it often needs to be prepared from raw fleece. Raw wool may contain grease, dirt, vegetable matter, and compressed fiber locks that make fiber preparation more difficult. Proper fleece preparation helps wool combs and hackles work more effectively by allowing the tines to align fibers smoothly and remove unwanted debris.

Sorting the Fleece

The first step in preparing raw wool is sorting the fleece. Not all areas of a fleece have the same fiber quality — the shoulder and back tend to produce the finest, cleanest spinning fiber, while the belly, legs, and edges of the fleece (called the skirt) are often shorter, coarser, or more contaminated with debris. Sorting before washing lets you focus your effort on the best parts of the fleece and set aside lower-quality sections for other uses like felting or garden mulch.

Sorting also gives you a chance to assess the fleece as a whole — to check staple length, feel the fiber character, and identify any areas with significant vegetable matter or second cuts that will need extra attention. A few minutes of sorting at the start saves time at every subsequent step.

Washing Raw Wool (Scouring)

Washing removes grease (lanolin) and dirt from the fleece — a process called scouring. Most raw fleece benefits from washing before combing or hackling because lanolin and environmental debris can interfere with fiber preparation tools, make fiber movement through the tines more difficult, and leave residue on the tines over time. Washed fiber moves more freely through combs and hackles, produces cleaner spinning fiber, and is easier to open and load onto tools.

The key to washing wool without felting it is to minimize agitation and avoid temperature shock. Use warm water throughout the wash and rinse process — sudden changes from hot to cold cause wool fibers to lock together and felt. Gently lower the wool into the water rather than stirring or scrubbing it, and lift it out carefully when transferring to the rinse. Let the wool soak and drain under its own weight rather than squeezing or wringing it. A gentle wool-safe detergent (or plain dish soap) is sufficient for most fleeces — allow the debris to settle to the bottom of the basin and lift the wool out rather than pouring it through a strainer. For heavily contaminated fleece, a second wash or a longer soak can help loosen stubborn debris before you begin hand-picking.

Drying the Fiber Completely

After washing, wool must be dried completely before further preparation. Moisture causes fibers to stick together, makes opening locks and loading fiber onto tools more difficult, and — if the fiber is stored damp — can lead to mold and musty odors that are difficult to remove. Spread the washed wool in a thin, even layer on drying racks or mesh screens, and allow good airflow around the fiber. Turning the fiber over partway through drying helps ensure even airflow and speeds up the process.

In a well-ventilated space, most washed fleece dries within 24 to 48 hours. In humid conditions it can take longer — a fan directed at the fiber can help. The fiber should feel completely dry — not just surface-dry — before you begin combing or hackling. Squeeze a small handful firmly: if it feels cool or damp inside, it needs more time. Completely dry wool separates easily, loads onto tools cleanly, and produces the most consistent fiber preparation.

Opening the Fiber Locks

Once dry, the wool should be opened by gently separating the locks before loading onto combs or a hackle. Washed fleece often dries with the locks somewhat compressed or matted together — opening them by hand loosens the fiber, removes any remaining debris that wasn't washed out, and improves how evenly the fiber distributes across the tines. This step takes only a moment per lock but makes a significant difference in how smoothly the fiber moves through the preparation tools.

To open a lock, hold it at the cut end (the base) and gently tease the tip open with your fingers, working from the tip toward the base. You're not trying to fully separate every fiber — just to loosen the lock so it's airy and open rather than compressed. As you open each lock, you'll also have a chance to remove any remaining vegetable matter by hand. Even after washing, small pieces of plant material may remain in the wool — removing these before combing protects the tines and improves the quality of the finished preparation. Learn more about how to use a wool hackle.

Checking Staple Length

Staple length refers to the length of the fiber locks, and it's one of the most important factors in determining how well a fleece will comb or hackle. Longer staple fibers have enough length to drape over the tines, align properly, and draw off cleanly — they produce the smoothest, most consistent combed top. Shorter staple fibers are more prone to falling out as noil during combing, which reduces yield and can make the process less efficient. Very short staple fiber may not be well suited to combing at all and may be better prepared by carding.

To measure staple length, take a single lock and gently stretch it to its full length without pulling it apart. The length from tip to cut end is the staple length. Learn more about why staple length matters when combing.

Loading Fiber onto Combs or Hackles

Once the wool is clean, dry, opened, and assessed for staple length, it is ready to be loaded onto preparation tools. The principles for loading are the same whether you're using wool combs or a hackle: use small amounts of fiber, spread it evenly across the full width of the tines, and avoid compressing fiber into the tines. The tines should remain at least partially visible through the fiber load. A light, even load moves through the tines smoothly and produces more consistent fiber preparation than a heavy, uneven one.

Load fiber with the tips of the locks going onto the tines first — this is the direction the fiber will naturally align during combing or hackling. Mixing tip and cut ends in the same load can produce tangled, uneven preparation. Work in small batches rather than trying to process the entire fleece at once — smaller batches are easier to control and produce more consistent results. Learn more about how much fiber to load on a wool hackle and the complete guide to wool combs and hackles for fiber preparation.

Key Takeaways

• Raw wool contains lanolin, dirt, and vegetable matter that interfere with combs and hackles if not removed first
• Sorting fleece by area (shoulder, back, belly, legs) separates high-quality spinning fiber from lower-quality sections
• Washing (scouring) removes grease and debris — avoid agitation and temperature shock during washing to prevent felting
• Wool must be completely dry before combing or hackling — moisture causes fibers to stick and can lead to mold
• Opening the fiber locks by hand loosens compact fiber, removes remaining debris, and improves distribution on preparation tools
• Staple length determines preparation suitability — long staple is ideal for combing; short staple requires careful handling or carding instead
• Remove remaining vegetable matter by hand after washing to protect tool tines and improve fiber quality
• Load fiber onto combs or hackles in small, evenly spread amounts with tips going onto the tines first — never compress fiber into the tines
• Proper raw wool preparation makes every subsequent step — combing, hackling, drafting, and spinning — easier and more consistent

Frequently Asked Questions

Do you need to wash wool before combing?

Most raw fleece benefits from washing before combing or hackling to remove grease, dirt, and debris that can interfere with fiber preparation. Washing (scouring) removes natural lanolin and environmental debris, allowing combs and hackles to work more effectively and protecting preparation tools. Unwashed fiber can also leave residue on the tines over time, making tools harder to clean and maintain.

Can raw wool be combed without washing?

Some spinners comb grease wool (unwashed), but washing is more common for beginners as it makes fiber preparation easier. Unwashed wool contains lanolin and debris that can make fiber movement through combs more difficult and may interfere with tool performance. That said, some spinners prefer working with grease wool because the lanolin acts as a natural lubricant that can help fibers slide through the tines more smoothly — it is a matter of personal preference and the specific fleece you are working with.

Why should wool be completely dry before preparation?

Dry wool prevents mold growth and allows fibers to separate more easily during preparation on combs or hackles. Moisture can cause fibers to stick together and makes opening locks and loading fiber onto tools more difficult. Complete drying preserves fiber quality and ensures the fiber will move freely through the tines during combing or hackling.

What is staple length?

Staple length refers to the length of the fiber locks in the fleece. Long staple is excellent for combing, medium staple works well for most preparation methods, and short staple may require careful handling. Understanding staple length helps choose the best preparation method — fibers that are too short for combing tend to fall out as noil rather than staying in the preparation, which reduces yield and can make the process less efficient.

How do you sort raw fleece for spinning?

Sort fleece by area and quality. Shoulder areas are often very clean and soft, back areas have strong consistent fiber, belly areas have shorter coarser fiber, and leg areas are often more contaminated with debris. Sorting helps separate fiber suitable for spinning from fiber better suited for other uses. Taking time to sort before washing also makes the washing process more efficient, since you can focus your effort on the best parts of the fleece.

What should you do with debris that remains after washing?

Remove small pieces of vegetable matter by hand before combing or hackling. Even after washing, some debris may remain in the wool. Removing these pieces improves the final fiber preparation, protects combs and hackles, and improves spinning fiber quality. For heavily contaminated fleece, a second wash or a longer soak can help loosen stubborn debris before you begin hand-picking.

How do you avoid felting wool during washing?

The key to avoiding felting is to minimize agitation and temperature shock. Use warm water throughout the wash and rinse process — sudden changes from hot to cold cause wool fibers to lock together and felt. Gently lower the wool into the water rather than stirring or scrubbing it, and lift it out carefully when transferring to the rinse. Letting the wool soak and drain under its own weight, rather than squeezing or wringing it, is the safest approach for most fleeces.

How long does washed wool take to dry?

Drying time depends on the amount of wool, the humidity in your environment, and the airflow around the fiber. In a well-ventilated space, most washed fleece dries within 24 to 48 hours when spread in a thin layer on drying racks or mesh screens. In humid conditions it can take longer. Turning the fiber over partway through drying helps ensure even airflow and speeds up the process. The fiber should feel completely dry — not just surface-dry — before you begin combing or hackling.