We originally used a recipe based on Michel Garcia's 1-2-3 vat but have made some changes to control how light or dark your vat is.| Botanical Colors
A 1-2-3 indigo iron vat will give you a cool blue-gray color. It is a good choice for dark blue shades when making an indigo vat.| Botanical Colors
The fructose indigo vat is one of the easiest indigo vats to set up and gives good color. I've found that it benefits from a few days aging| Botanical Colors