The strands were dyed together in a dye lot, but each one is unique, because the color distribution and intensity of color may be different. For a bigger piece of knitting, I would advise therefore turns to knit with 2 strands.
The wool was dyed with acid colors and vinegar, fixed, rinsed, and washed in the wool cycle. I recommend to wash the finished garment the first time by hand, if the color (s) unexpected way (s) but bleed. Otherwise, the wool at 30 degrees in the wool cycle (please without fabric softener!) can be washed.
Due to different monitor settings, the colors shown in the pictures may differ slightly from the original.