Boiled Wool: Properties, Care & Sewing Tips | Fabric Guide

Boiled wool is a premium wool fabric that is felted through controlled fulling (pressing, compressing, and pressing in warm fulling solutions). This traditional process causes the fabric to shrink and densify, creating an opaque, windproof, and exceptionally durable surface. Unlike conventional felt, boiled wool is based on a woven fabric, giving it more elasticity and structure.

Properties of Boiled Wool

Temperature regulating: Keeps warm in cold and prevents heat build-up in warmth
Water and dirt repellent due to natural wool grease (lanolin)
Windproof: The felted structure provides high protection against drafts
Edge stable: The fabric does not fray and does not necessarily need finishing
Breathable: Moisture is wicked away from the body without feeling wet

Uses for Boiled Wool

Boiled wool overalls for babies and toddlers

Coats and jackets for transitional seasons and winter

Vests as sleeveless warmers

Accessories like headbands, hats and gloves

Blankets and cushions for rustic home ambiance

Care Instructions

1 Air out instead of washing - wool barely absorbs odors and cleans itself in fresh air

2 Brush out stains after drying with a soft brush

3 If necessary only hand wash with cold water and special wool detergent

4 Dry flat on a towel to avoid deformation

Sewing Tips for Boiled Wool

Choose the right needle: Use a universal or jersey needle in size 80 or 90. For thick layers, a walking foot helps with even fabric transport.

Use raw edge finishing: Since boiled wool does not fray, seams can be placed decoratively on the outside and left unfinished. This saves time and gives a traditional folk look.

Adjust presser foot pressure: Reduce the presser foot pressure so the fabric does not stretch or ripple under the machine. This prevents unsightly waviness at the seams.

Frequently Asked Questions about Boiled Wool

Does boiled wool need to be pre-washed?

No, high-quality boiled wool should not be pre-washed as it may lose its shape and protective lanolin. The fabric has already been shrunk through the fulling process.

Does boiled wool scratch on the skin?

Since boiled wool is made from virgin wool, sensitive people may find it rustic. A lining of jersey or viscose provides relief and makes the garment comfortable to wear.

What is the difference between boiled wool and felt?

Boiled wool is first woven and then fulled, making it more elastic and structured. True felt, on the other hand, is pressed from disordered fibers and is therefore stiffer and less flexible.

Related Fabrics

Wool Felt Fleece

Boiled Wool at Stoffmarkt

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