How to Clean and Store Wool After Shearing

Wool is a versatile and valuable natural fiber harvested from sheep through shearing. Once sheared, the wool must be properly cleaned and stored to maintain its quality, prevent damage, and prepare it for future use. Whether you’re a small-scale shepherd, a fiber artist, or simply interested in wool processing, understanding how to clean and store wool effectively is essential. This article will guide you through the steps of cleaning raw wool after shearing and provide best practices for storage.

Understanding Raw Wool

Raw wool straight from the sheep is called “greasy wool” because it contains natural oils (lanolin), dirt, sweat salts, vegetable matter, and other impurities like seeds and burrs. The lanolin acts as a protective coating on the fleece, keeping the wool soft and water-resistant while the sheep are alive. When harvested, this lanolin makes the wool sticky and heavy.

Cleaning raw wool involves removing these impurities through a process called washing or scouring. Proper cleaning enhances the wool’s appearance, texture, and usability. However, excessive washing or harsh chemicals can damage the fibers or strip away too much lanolin, making the wool brittle.

Preparing Wool for Cleaning

Before you begin cleaning your fleece, there are several important considerations:

• Sort the Wool: If your fleece contains heavily soiled or damaged areas—such as from urine stains or debris—consider sorting those parts out. Sorting ensures better overall quality.
• Handle with Care: Raw fleece is delicate; avoid excessive agitation which can cause felting or matting.
• Choose the Right Location: Select a clean area with access to warm water but gentle drainage.
• Use Appropriate Tools: You’ll need containers or tubs large enough to soak your fleece without overcrowding; mesh bags can help contain loose fiber during washing.

Step-by-Step Guide to Cleaning Wool

1. Skirting

Skirting involves removing unwanted parts of the fleece before washing. This includes dirty edges, heavily stained areas around the belly or legs, and any excessively matted sections. Skirting helps reduce contamination and saves you from processing unusable material.

Lay your fleece on a clean surface and trim away any dirty or coarse bits. You want to keep only clean locks that will yield high-quality fiber.

2. Pre-Soak (Optional)

A pre-soak in lukewarm water with a mild detergent formulated for wool can help loosen dirt before full washing. Submerge the fleece gently and leave it for 15–30 minutes without agitation.

3. Washing (Scouring)

Washing raw wool requires careful temperature control and minimal agitation.

• Fill your tub with water at about 90°F to 100°F (32°C to 38°C). The temperature should remain consistent throughout all rinses to avoid shocking the fibers.
• Add a small amount of gentle wool detergent or soap designed for lanolin preservation.
• Submerge fleece carefully into the water without stirring or rubbing.
• Let it soak for 20 minutes to allow grease and dirt to dissolve.
• Lift out fleece gently using mesh bags if needed; avoid wringing or squeezing.

4. Rinsing

Drain soapy water and refill tub with clean warm water at same temperature.

• Gently submerge fleece again for another 15–20 minutes.
• Repeat rinsing until water runs clear.

Avoid agitating during rinsing since friction causes felting.

5. Drying

After final rinse:

• Lay fleece flat on clean sheets or drying racks in a well-ventilated area.
• Avoid direct sunlight which can weaken fibers.
• Turn occasionally to ensure even drying.

Drying can take several days depending on humidity levels.

Removing Vegetable Matter

Despite washing, some vegetable matter like grass seeds or burrs might persist.

• Manually pick out visible debris once fleece is dry.
• For stubborn matter, carding (combing) helps remove small particles while also aligning fibers for spinning.

Storing Wool Properly

Once clean and dry, storing wool correctly preserves its quality until use.

Ideal Storage Conditions

• Cool, dry place: Keep away from moisture which causes mold and mildew.
• Dark environment: Light exposure can degrade fibers over time.
• Protected from pests: Moths love untreated wool; prevention is vital.

Storage Methods

Airtight Containers

Plastic bins with tight-fitting lids protect against dust and insects but allow limited airflow. Place cedar blocks or moth repellents inside (natural options preferred) to deter pests.

Cotton Bags or Muslin Sacks

Breathable fabric bags prevent moisture buildup but require careful pest control measures.

Vacuum Sealing

Vacuum-sealing reduces volume but may compress fibers excessively if stored long-term; best reserved for short-term storage.

Pest Prevention Tips

• Use natural repellents such as dried lavender, cedar chips, or rosemary sachets.
• Regularly inspect stored wool for signs of moth damage—tiny holes or webbing.
• Freeze freshly cleaned wool for 24–48 hours before storing to kill eggs and larvae if infestation risk is high.

Additional Tips for Handling Wool After Shearing

• Process wool as soon as possible after shearing to prevent dirt buildup.
• Avoid mixing different sheep breeds’ fleeces unless intended for blending.
• Label batches by animal, date, or quality grade if managing multiple fleeces.

Conclusion

Cleaning and storing wool after shearing is a careful process that safeguards one of nature’s finest fibers. From skirting off unwanted bits through gentle washing to drying completely in a controlled environment, each step preserves the integrity of wool’s softness and strength. Proper storage away from light, moisture, and pests extends its lifespan dramatically.

Whether you’re preparing wool for spinning, felting, or sale, following these guidelines ensures your fleeces remain fresh and ready whenever creativity strikes. With patience and attention to detail, you can enjoy the beauty of clean wool throughout the seasons ahead.