What is wool?
Wool is a natural fiber derived from sheep, goats, or other animals. It is resilient, warm, and breathable, but also susceptible to shrinking and felting when improperly handled.
The structure of wool is different from cotton or synthetic fabrics: each fiber has scales that can interlock with movement or heat.
Dangers of machine washing
1. Shrinking
Wool fibers contract with heat and movement
The result is that the garment becomes smaller
Especially hot water and high spin speed accelerate this process
2. Felting
Wool can felt when wet fibers rub against each other
Scales interlock, making the fabric thicker and stiffer
A felted sweater can be irreparably damaged
3. Loss of shape
Wool can lose its natural stretch and fit
The fabric can stretch or become uneven
As a result, the garment fits less well and looks untidy
When can wool be machine washed?
Some types of wool and garments can be carefully machine washed:
If there is a special wool or hand wash program
Only with cold water and a mild wool detergent
Use low spin speed or no spin
Turn the garment inside out
Even then, caution is advised, especially with handmade or historical clothing.
Alternatives to the washing machine
To clean wool safely:
Hand wash in lukewarm water with wool detergent
Air out or shake to remove odors
Spot clean small stains
These methods preserve the structure, shape, and lifespan of the garment.
Summary
Wool often should not be machine washed because:
It shrinks with heat and movement
It can felt due to friction of the fibers
It can lose its natural shape
Safe maintenance of wool means gentle washing, drying flat, and regular airing. This ensures that wool remains beautiful, resilient, and comfortable for a long time.
