I experimented with beet juice for dyeing fabric the other day. I have tried coffee, which has its own acidity and does not need a mordant. Vegetable colors do need a color fixative, so I tried this one with vinegar, using a cold dye method. The white strip is the color my fabric was before dyeing. The pinkish strip is the color after dyeing. I have more experimenting to do, since this is only my second attempt. I am using strips and bits of fabric to do this because I have small project thoughts for these after dyeing.
Do you dye fabric? What do you use as a mordant? I want to keep it natural and non-toxic.