Publication date: September 2019
Last updated: October 2020

The risks of washing

Wool is a natural fibre. These fibres have a scaly surface. They are smoothed and combed to make yarns. During washing, it is the accumulation of various phenomena that make the wire brittle and that induce the felting. With water absorption and temperature rise, the fibres swell and the scales on the surface open. With friction, they can cling to each other. Once the fibres are combined, they do not return to their original place and shape. This is the origin of the phenomenon of felting which leads to a narrowing of the garment.

A conventional washing, accompanied by a traditional laundry is all it has for the worst for the environment. The energy used by the machine to heat the water as well as the release of household products into the environment contradicts the eco-responsibility of our wool product.

The EXP processing

Not all treatments are equal, some are more aggressive to the material and the environment, including chlorine. These treatments are polluting and require a lot of water to remove all traces of chemicals.

Always in respect of the environment and in order to avoid the phenomenon of felting of our clothes, our filler Schoeller has developed an EXP treatment, meaning Ex-pollution. A treatment allows to hang micro-polymers on the surface of the fibres to make it smooth and thus avoid the felting of the garment. The first and the only wool process in the world certified by Bluesign and GOTS. Two labels that guarantee the production of eco-friendly textiles.

Some details for a good wash

One of the first characteristics of wool is its anti-bacterian property. It ensures you a product anti-odour. This feature allows you to space the washes of your wool products. In order to guarantee a good wash for environment, some conditions must be respected

  • First, your machine must have a special wool/ delicate textile program. This washing cycle ensures a very reduced mechanical action, which avoids too intense friction and too abrupt temperature changes.
  • Pilling may appear during washing. Thesesmal pilling are natural and unavoidable. Some wool fibres (the shortest ones) escape from the knitting due to friction in the washing machine But your pilling will leave naturally after the first wash. Turn the garment upside down to wash.
    (You can consult our article on wool pilling)
  • Be careful to never exceed the washing temperature and don't use fabric softeners or chlorine! Chlorine can damage your garment and its colour, and the fabric softener will lose all the natural qualities of merino wool by seeping into the fibres. Favor maintenance products without phosphate or phosphonate.
  • You can spin in machine without exceeding 500 revolutions/ minute.
  • Do not use dryeing machine 
  • To preserve the colors, dry your garment horizontally away from the sun.

Washing by hand


Fill a larg bowl with water at 30° max. Soak your garment for a few minutes, then add special wool laundry or neutral PH soap. Rub the garment for a few minutes.. Then rinse. The garment is rinsed when the water becomes clear when you spin the product. Be careful not to wring the garment. For drying phase, place your garment flat, in shade.

Dry washing


Although we don't recommend it because of the use of chemical solvents, dry cleaning is also possible. It should be noted that solvents used for dry cleaning are harmful to man and the environment.

Look at inner handtags

It's essential not to wash hot and not to use a dryer in order to avoid any risk of shrinkage and felting.

For machine washing, use a program "hand washing", "wool" or "delicate textile"

Remember: wool is a natural antibacterial fibre: it's not necessary to wash your Henjl products as often as a synthetic or cotton product!

For the washing of our products we recommend the use of washing detergents without phosphate or phosphonate such as Hakasoft Sensitive from Hakawerk, a very environmentally friendly brand.

Do not hesitate to contact our service.