1. Why Does Wool Have a Pungent Odour?
The distinctive smell that sometimes accompanies wool products comes from lanolin, a natural oil produced by sheep to protect their fleece from the elements. Lanolin acts as a waterproofing agent, keeping the wool—and the sheep—dry and insulated. While lanolin is beneficial for the wool’s performance, it can also carry a strong, earthy odour, especially in high-quality wool products that retain more of their natural oils.
Additionally, wool’s natural fibres can absorb environmental scents during processing and storage, contributing to the initial odour. This is why the smell might be stronger when you first unwrap a wool item, especially if it’s been packaged for a while.
But lanolin isn’t the only contributor to the initial smell of a woollen blanket. The dyes used in the production process can also play a significant role in creating or intensifying the odour. Unlike synthetic dyes, which are often engineered to be odourless, natural dyes derived from plants, roots, bark, and other organic materials can carry their own unique scents. When these natural dyes are applied to wool, especially in traditional or artisanal dyeing processes, they can interact with the lanolin and other wool fibres, sometimes resulting in a more potent smell.
2. The Good News: The Odour Fades Over Time
The strong smell of wool is temporary and typically fades as the product is exposed to fresh air and used regularly. With time, the lanolin scent dissipates, leaving behind only the cosy, natural feel of wool. Depending on the environment, the odour can diminish significantly within a few days to a few weeks.
Fact: Wool is hygroscopic, meaning it can absorb moisture from the air without feeling damp. This property helps reduce odour over time as the fibres naturally breathe and release absorbed scents.
3. Airing Out: The Easiest Solution
One of the simplest ways to reduce the pungent odour of a wool product is to air it out. Place your wool item in a well-ventilated area, preferably outside in the shade. Fresh air helps to disperse the smell and speeds up the fading process. Avoid direct sunlight, as prolonged exposure can cause the wool to fade or weaken.
Pro Tip: If possible, lay the wool item flat or hang it up, ensuring even exposure to the air. Moving the item around occasionally can help all areas benefit from the ventilation.
4. Gentle Washing: A Refreshing Approach
If airing out alone doesn’t fully eliminate the odour, consider giving your wool product a gentle wash. Use a wool-specific detergent and cold water to preserve the fibres’ natural properties. Soak the wool item for a short time, then rinse thoroughly with cold water. Gently press out excess water—never wring or twist the wool, as this can cause damage.
After washing, lay the item flat on a towel to dry in a shaded, well-ventilated area. This process not only freshens up the wool but also helps remove any lingering smells.
Industry Insight: The Woolmark Company recommends washing wool items by hand or on a gentle machine cycle, as harsh detergents and rough handling can strip the wool of its natural oils, compromising its quality.
5. Natural Deodorisers: A Little Extra Help
For particularly stubborn odours, natural deodorisers can be an effective solution. Sprinkling a light layer of baking soda on the wool item and letting it sit for a few hours can help neutralise the smell. Afterward, gently shake out the baking soda or use a soft brush to remove any residue.
Another option is to store the wool item with a sachet of dried lavender or cedarwood, both of which naturally absorb and mask odours while protecting the wool from moths.
Conclusion: Embracing the Natural Qualities of Wool
While the initial odour of wool products can be surprising, it’s a small price to pay for the many benefits of this natural, sustainable fibre. With a little patience and some simple care techniques, the smell will fade, leaving you with a wool item that’s not only functional but also a pleasure to use.
Remember, the earthy scent is a sign of the wool’s authenticity and natural origins—qualities that make it a beloved material around the world. By understanding and managing the odour, you can enjoy all the warmth, comfort, and durability that wool has to offer without any unwanted surprises.
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