How to care for a boiled wool coat at home

Boiled wool is a felted fabric, which means the fibres have been matted together under heat and pressure before the cloth is cut. That process makes it dense, wind-resistant and very warm, but it also means it responds to water and heat differently from a woven or knitted wool. Getting the care wrong once can change the coat permanently.

Why boiled wool behaves differently from other wool ¶

Standard woven wool has a clear structure: warp and weft threads that can be seen if you look closely at the surface. Boiled wool does not. The fibres are locked together, which is what gives it that smooth, almost suede-like face. The trade-off is that once those fibres shift, they do not shift back. A boiled wool coat that goes into a domestic washing machine on the wrong cycle will come out smaller and stiffer, and there is no remedy for that.

The weight of the fabric also matters. The coat in the current Silver Raindrop collection is 650gsm, which is heavier than most high-street wool coats. That weight means it holds its shape well in normal wear, but it also means it takes longer to dry if it gets wet, and it should never be wrung or folded while damp.

Spot cleaning and airing ¶

For most marks, spot cleaning with a damp cloth and a small amount of gentle wool wash is sufficient. Work from the outside of the mark inward, use as little water as possible, and press rather than rub. Leave the coat flat to dry away from direct heat.

Airing is underrated as a maintenance tool. Hanging a boiled wool coat outside on a dry, overcast day for a few hours will remove most odours and refresh the fabric without any risk. In autumn and winter, when the coat is in regular use, doing this once a fortnight is enough.

When to take it to a specialist ¶

If the coat needs a full clean, a dry cleaner who works with structured wool garments is the right choice. It is worth asking specifically whether they have experience with felted wool, because the process is different from cleaning a standard wool coat. A good dry cleaner will know the difference; one who is uncertain is worth avoiding.

Pilling on boiled wool is rare because the surface is already felted, but if it does occur around areas of friction, a fabric shaver used very lightly on the lowest setting will deal with it. Do not use a lint roller on boiled wool; the adhesive can pull at the surface fibres over time.

Storage between seasons ¶

Store the coat hanging rather than folded, in a breathable cotton or linen garment bag. Avoid plastic covers, which trap moisture. Cedar blocks or lavender sachets near the coat will deter moths without the chemical smell of mothballs.

Before storing for summer, check the collar and cuffs for any marks and deal with them before they set. A coat that goes into storage clean will come out in much better condition than one that goes in with a season's worth of small marks that have had months to oxidise.

Boiled wool is one of the more forgiving fabrics if you treat it right from the start. The coat in the current collection has a care card included; if you have questions about a specific mark or situation, hello@silver-raindrop.com is the quickest way to reach us.