Continuing working with oxidising coppper with salt and vinegar some human urins was also introduced for some of the copper patination.
In Portugal salt is sold in crude rock form rather than in the powder we are more familia with in the UK creating a very different texture. I was able to create kilograms of this beautiful blue colour by using an old copper container that I discovered in the barn that is used as the exhibition space at Cultivamos Cultura. I would fill the container, drench it in vinegar and allow it to dry under the hot Alentejo sun.
