Collecting the ingredient
- Oak knopper galls - I collect my oak galls from the ground when they have fallen from the oak tree. You can collect and use oak galls freshly, but this will usually give a lighter natural dye.
- I have been collecting mine for a few years and I leave them outside in an old metal bucket with a loose lid, where they are exposed to the air, water and the metal of the bucket. This means the dye can be created on it’s own without cooking, as the combined elements create a dark brown colour of the water to make a mordanted dye or ink of the oak galls. (See the last step for more information about Mordanting)