© Catharine Ellis, as posted to the blog: Natural Dye: Experiments and Results This recipe can used to make a 1-liter vat or can be scaled up to a larger vat. I typically make a vat that is 50 liters in volume. The recipe is intended as a starting point for the dyer who wishes … Continue reading Fermented Indigo Vat: Blog Post #6 Recipe: Basic Fermentation Vat with Soda Ash or Potash