25g Oak gall.
Yellows and greys with the addition of iron water*.
The oak gall is a mutation of an oak leaf caused by chemicals injected by the larvae of certain kinds of gall wasps.
The galls are full of tannins and are used as a mordant when dyeing cellulose fibres such as cotton and linen.
*For the recipe for Iron Water see the Useful Links section of the website where you can download all the information sheets we produce.
