Why Wool Needs Different Care
Wool is one of nature's most remarkable fibres — naturally temperature-regulating, moisture-wicking, and resilient when treated properly. But it is also uniquely vulnerable to certain conditions: hot water, agitation, and improper storage can cause irreversible felting, stretching, or damage in ways that synthetic fabrics can withstand. Handmade wool garments deserve particular care because they often use less-processed fibres and more delicate construction than machine-knitted equivalents.
How Often Should You Wash Wool?
The good news: wool doesn't need frequent washing. Its natural lanolin content resists odours and light dirt. For most handmade wool sweaters and cardigans, washing every three to five wears — or simply when visibly soiled — is entirely appropriate.
Between washes, air your garments out overnight on a flat surface or a padded hanger. This is often enough to freshen them up completely.
Washing Handmade Wool: Step by Step
- Check for specific instructions: If the maker provided a care card, follow it closely. Different wool types (merino, Shetland, alpaca) have slightly different tolerances.
- Use cold or lukewarm water only: Hot water is the primary cause of wool felting. Always use water that feels cool to the touch.
- Choose a wool-safe detergent: Look for pH-neutral formulas specifically designed for wool or delicates. Avoid regular laundry detergent, which can strip natural lanolin.
- Hand wash gently: Submerge the garment and gently squeeze the water through. Do not rub, wring, or agitate. Let it soak for 10–15 minutes, then drain.
- Rinse carefully: Refill with clean cool water of the same temperature and repeat the gentle squeeze-and-drain process until no soap remains. Temperature shock from rinsing with much colder water can also cause felting.
- Remove excess water without wringing: Gently press (don't twist) the garment against the side of the basin, then roll it in a clean dry towel and press firmly to absorb moisture.
Drying Wool Correctly
This step is critical. Wet wool is heavy and stretches easily under its own weight, so hanging is almost always the wrong choice.
- Lay flat to dry: Reshape the garment to its original dimensions and lay it flat on a clean dry towel or a mesh drying rack. Allow air to circulate underneath if possible.
- Avoid direct sunlight and heat: Both can cause colour fading and fibre degradation. A well-ventilated room at room temperature is ideal.
- Never use a tumble dryer unless the label explicitly states it is safe — most handmade wool cannot withstand machine drying.
Dealing With Pilling
Pilling — the formation of small fibre balls on the surface — is a natural result of friction and is not a sign of poor quality. It actually tends to occur more on higher-quality, longer-fibre wools. Remove pills gently with a dedicated fabric comb or battery-powered lint shaver. Work slowly and in one direction to avoid pulling the knit structure.
Storing Wool Through the Off-Season
- Always wash before storing: Body oils and food residues attract moths.
- Fold, don't hang: Long-term hanging stretches wool out of shape. Fold and store in a breathable cotton bag or a drawer.
- Use cedar blocks or lavender sachets: Natural moth repellents that won't harm your garments or the environment. Avoid mothballs, which contain harsh chemicals that can damage fibres and are unpleasant to wear.
- Store in a cool, dry place: Moisture encourages mildew. Ensure garments are fully dry before folding away for storage.
When to Seek Professional Care
For particularly precious or complex handmade pieces — heavily embellished, delicate lace-weight knits, or items with significant sentimental value — consider professional wet cleaning from a specialist who handles natural fibres. It's a small investment to protect something irreplaceable.