Q: What's that smell?
A: A natural indigo vat has a unique smell somewhere between earthy, musty, smoky with a hint of grass and manure!
The indigo pigment that comes in your bottle is actually a fermented extract from a plant. As a result, different seasons and batches of indigo, as well as indigo from other locations will have varying smells. Different vat preparations also create different smells and believe it or not, this vat style, known as the iron vat, has the least smell!
After your dyed goods are rinsed in the citric acid solution and washed, the smell fades.