The following is based on Paddock To Ply opinion and may not necessarily be industry standard, or appropriate to every natural fibre, and therefore should be considered as a recommendation only.
Finishing is an art, and the methods you choose will depend on the type of handle you want to achieve. Water type, your chosen washing method and finishing detergents/conditioners, the equipment you use, temperature, and time will all have an effect on your natural fibre project.
We advise you to experiment first, for example on knitted tension squares, until you are totally satisfied with the results before you start washing and finishing your first natural fibre project. We take no liability whatsoever for undesired results.
During wet finishing always wash your natural fibre item twice to remove all processing oils. The first wash will remove the oil while the second wash will create the desired soft handle.
Hand Wash only.
The removal of processing oil.
The first wash should be at 40 degrees Celsius. The ratio of water to material should be as per selected detergent recommendations. A detergent designed for fibre lubricant removal should be added as per product instructions.
Do not rub or agitate. Wool has a high felting capacity if agitated. Simply let the natural fibre article lie in the water and detergent.
Drain and rinse using warm fresh clean water.
Achieving the desired finish and removal of residual oils.
Add clean water for the second wash at 40 degrees Celsius, using the same ratio of water to material, as previously used. Add detergent at previous ratio and wash until the desired handle is obtained. Rinse using warm fresh clean water.
A specialist natural fibre softener may be added at the prescribed rate after the second wash. Fill with fresh clean water at 40 degrees Celsius. Do not rinse.
Do not bleach. Bleaching will cause irreversible damage to your natural fibres.
Do not tumble dry. Do not Iron. Do not dry clean. These can all dramatically alter the fibres appearance and handle, sometimes irreversibly.
Natural fibre articles should be wrapped in a towel to have any excess water gently squeezed out before being naturally dried, flat in the shade.
Storing your dried natural fibre articles correctly is just as important. To ensure they are kept in perfect condition store your articles in suitable containers. To discourage moths and other insects place wooden cedar or camphor balls amongst your precious natural fibres.