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Wool Washing / Processing

Wool Washing / Processing

Fermented Suint Method

Pro’s

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No Harsh Chemicals:

The method does not require any detergents or harsh chemicals, making it an environmentally friendly option for washing wool.

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Low Water Usage:

After the initial soaking, the same water can be reused for subsequent batches, minimizing water consumption.

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Cost-Effective:

The process only requires water and time, making it a very economical way to clean wool.

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Preserves Wool Quality:

The fermentation process is gentle on the wool fibers, helping to preserve the natural lanolin and resulting in softer wool.

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Less Fiber Damage:

The absence of harsh chemicals reduces the risk of damaging the fibers, maintaining the wool's integrity.

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Traditional and Sustainable:

This method is rooted in traditional practices and aligns with sustainable living principles.

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Biodegradable Waste:

The waste water, rich in organic matter, can be safely disposed of in the garden or compost.

Steps

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Prepare the Fleece:
  • Choose raw, unwashed wool fleece straight from the sheep. It should have its natural lanolin and dirt.
  • Shake Out Loose Debris: Gently shake the fleece to remove loose dirt, straw, and large debris. You don’t need to remove all the dirt; the fermentation process will handle most of it.
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Set Up the Soaking Container:
  • Choose a Large Container: Use a large, non-metallic container like a plastic tub, barrel, or large bucket. The container should be big enough to fully submerge the fleece.
  • Fill with Water: Fill the container with lukewarm to warm water. The water temperature should be around 20-30°C (68-86°F). Warm water helps to kickstart the fermentation process.
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Soak the Fleece:
  • Submerge the Fleece: Place the fleece in the water, ensuring it is fully submerged. You can gently press it down to remove any air pockets, but do not agitate the wool to avoid felting.
  • Cover the Container: Cover the container loosely to keep out debris but allow air circulation. This is important for the fermentation process.
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Fermentation Period:
  • Let It Ferment: Allow the fleece to soak for 5-7 days. In warmer weather, the process may be quicker; in cooler weather, it might take longer. The water will become dark and smelly as the fermentation progresses, which is a sign that the process is working.
  • Stir Occasionally (Optional): You can gently stir the wool once or twice during the process, but it’s not necessary. Avoid agitating too much to prevent felting.
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Check the Progress:
  • After about a week, check the fleece. The wool should be much cleaner, with the grease and dirt loosened from the fibers. The water will be dark and have a strong odor.
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Rinse the Fleece:
  • Remove the Fleece: Carefully lift the fleece out of the water, allowing the excess water to drain back into the container.
  • Rinse in Clean Water: Rinse the wool in clean, lukewarm water. You may need to rinse it several times until the water runs clear. Be gentle to avoid felting.
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Dry the Fleece:
  • Gently Squeeze Out Water: Gently press the fleece to remove excess water. Do not wring or twist the wool, as this can cause felting.
  • Lay Flat to Dry: Spread the wool out on a clean towel or drying rack in a well-ventilated area, out of direct sunlight. Allow it to dry completely, which may take a few days depending on the climate.
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Reuse the Fermentation Bath (Optional):
  • Save the Fermentation Water: The same water can be reused for subsequent batches of wool. Each batch will further inoculate the water, making the process faster and more effective over time.
  • Store for Later Use: If not using immediately, you can store the fermentation water in a sealed container for future use.

Con’s

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Long Process:

The fermentation process can take several days to weeks, depending on the temperature and conditions, making it much slower compared to modern washing methods.

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Additional Rinsing Required:

After the fermentation, the wool usually requires several rinses to remove all residues.

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Unpleasant Smell:

The fermentation process can produce a strong, unpleasant odor, which some may find off-putting. The smell can linger around the soaking area.

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Temperature Sensitivity:

The process works best in warm temperatures, typically above 20°C (68°F). In colder climates or seasons, the fermentation might be less effective or take longer.

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Potential for Incomplete Cleaning:

The effectiveness of the Fermented Suint method can vary depending on the condition of the fleece and the local water quality. Very dirty or heavily contaminated fleeces may not come out as clean as with modern washing techniques.

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Space Requirement:

The method requires a large container and space to soak the wool, which may not be practical for everyone, especially those living in small or urban spaces.

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Increased Risk of Fiber Matting:

If not handled carefully, the wool fibers can mat or felt during the process, especially if agitated too much during soaking or rinsing.

Cold Water Method

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Prepare the Fleece
  • Shake Out Debris: Before washing, shake the fleece outdoors to remove any loose dirt, straw, and other large debris.
  • Sort the Fleece (Optional): If desired, you can sort the fleece, separating out any heavily soiled or matted areas.
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Set Up the Washing Area
  • Choose a Container: Use a large, non-metallic container such as a plastic tub, bucket, or basin. It should be large enough to fully submerge the fleece.
  • Cold Water Supply: Fill the container with cold water. Cold water prevents the wool fibers from felting and helps preserve the lanolin.
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Soak the Fleece
  • Submerge the Fleece: Gently place the fleece in the cold water, making sure it's fully submerged. Do not agitate the wool; just press it down to ensure all fibers are in contact with the water.
  • Let It Soak: Allow the fleece to soak for 24 hours. This long soak helps to loosen dirt, sweat (suint), and some of the natural lanolin.
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Drain and Refill
  • Drain the Dirty Water: After soaking, carefully drain the dirty water from the container. Be gentle to avoid disturbing the wool too much.
  • Repeat Soak: Refill the container with fresh cold water and let the fleece soak for another 24 hours. You can repeat this process until the water remains relatively clear after soaking.
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Rinse the Fleece
  • Final Rinse: After the final soak, drain the water and refill the container with clean cold water. Gently lift and press the fleece to rinse out any remaining dirt and residue.
  • Optional Extra Rinse: If desired, you can perform an additional rinse in cold water to ensure the fleece is clean.
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Remove Excess Water
  • Gently Squeeze the Fleece: Carefully lift the fleece out of the water and gently squeeze it to remove excess water. Avoid wringing or twisting the wool, as this can cause felting.
  • Roll in a Towel: Lay the fleece on a clean, dry towel and roll it up to absorb more water. Press gently to help dry the fleece without agitating the fibers.
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Dry the Fleece
  • Lay Flat to Dry: Spread the fleece out on a drying rack, mesh screen, or clean surface, such as a large towel or sheet. It’s best to dry the fleece outdoors in a shaded, well-ventilated area, or indoors in a room with good air circulation.
  • Avoid Direct Sunlight: Keep the fleece out of direct sunlight, as this can cause the wool to become brittle and lose some of its natural qualities.
  • Turn Occasionally: As the fleece dries, you can gently turn it over to ensure even drying. This may take a few days, depending on the weather and thickness of the fleece.
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Store or Use the Fleece
  • Store the Clean Fleece: Once completely dry, store the fleece in a breathable bag or container to protect it from dust, pests, and moisture.
  • Ready for Use: The cleaned fleece can now be carded, spun, or used for other wool-related projects.

Hot Water Method (No Lanolin)

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Prepare the Wool:
  • Skirt the Fleece: Remove any large debris, dirt, and heavily soiled areas (like around the belly and legs) from the fleece.
  • Optional: Place the fleece in mesh laundry bags to keep it organized and easier to handle.
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Fill the First Wash Tub with Hot Water:
  • Use hot water (120-140°F or 49-60°C) to fill the tub. The water should be hot enough to melt the lanolin but not so hot that it risks felting the wool.
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Add Detergent:
  • Add a generous amount of wool detergent or mild dish soap. The detergent breaks down the grease and helps lift the lanolin from the fibers.
  • Stir gently to mix the detergent without creating too many bubbles.
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Submerge the Fleece:
  • Gently place the fleece into the hot, soapy water. Use a wooden spoon or your hands (with gloves) to push the wool down so that it is fully submerged.
  • Let the fleece soak for 15-30 minutes. Avoid agitating the wool to prevent felting.
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Drain and Repeat:
  • After soaking, carefully drain the dirty water. Gently press the fleece against the side of the tub to remove excess water, but do not wring or twist.
  • Refill the tub with fresh hot water and detergent, and repeat the soaking process 1-2 more times until the water remains fairly clear.
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Rinse the Wool:
  • Once the lanolin is removed, rinse the wool in hot, clean water (without detergent). Repeat the rinse until the water runs clear, indicating that all soap and lanolin are gone.
  • Use multiple rinses if necessary, and avoid sudden temperature changes to prevent shocking the wool and causing felting.
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Dry the Wool:
  • Carefully lift the fleece out of the water, allowing excess water to drain.
  • Lay the fleece flat on towels or drying racks in a well-ventilated area. Avoid direct sunlight, as it can cause the wool to become brittle.
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Optional Rinse with Vinegar:
  • Some people like to do a final rinse with a small amount of white vinegar (1/4 cup per gallon of water) to neutralize any remaining soap residue and soften the wool.

Lanolin

Pro’s

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Natural Water Resistance:

Lanolin imparts water-resistant properties to wool, making it ideal for outdoor garments and items that need to repel moisture.

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Softens Fibers:

Retaining lanolin keeps wool fibers soft and pliable, which can be beneficial for spinning and knitting.

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Skin Benefits:

Lanolin-rich wool can be gentle on the skin, providing a natural moisturizer that’s soothing during handling.

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Traditional and Heritage Uses:

In some traditional crafts, retaining lanolin is desirable to maintain authenticity and the wool’s natural state.

Con’s

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Difficult to Dye:

Lanolin can prevent wool from absorbing dye evenly, leading to less vibrant or uneven colors in finished products.

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Greasy Texture:

Excessive lanolin can leave wool feeling greasy, making it less pleasant to handle or wear in certain applications.

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Carding and Spinning Challenges:

High lanolin content can cause wool fibers to stick together, making carding and spinning more difficult.

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Increased Maintenance:

Wool with a lot of lanolin requires more frequent cleaning of equipment like carders due to grease build-up.

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Allergenic Potential:

Some people are allergic to lanolin, making it unsuitable for clothing or textiles meant for sensitive skin.

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