Recipe: Dissolve 100% catechu in 1000% cold water and bring to the boil. Add plenty of hot water and boil for 30min, might foam! Add more cold water until you have enough for the dye bath.
Yarns tested: Linen (bleached), Alpaca, ramie/wool, BFL wool
Mordant Alum 14%, 1 hour
Simmer for one hour, cool down in Dye bath, rinse out
Alpaca: earthy Mustard, Linen: light beige brown, BFL: brown, ramie/wool: red brown
Yarns were tie dyed, because some moved on to be over dyed with Lac dye.