Dang, I just wrote a post that vanished due to clumsy fingers
Found this at Mad Micas: Madder powder is scratchy and produces speckles when added to soap at trace, but infusing in oil for a few day eliminates scratchiness and speckles (
website).
Dyers use madder and the Dharma Trading
website offers a number of prep tips that seem transferable:
“Pro-tip(s): Most natural dyestuffs like to be soaked overnight for some of the darkest shades. We prepped our dyestuffs in a blender with water and let them soak overnight. We used 50% weight of goods for the ground madder and 20% weight of goods for the cochineal. We also strained the dyestuffs and made “tea bags” with some scrap muslin so there wouldn’t be loose floating plant matter when we added our yarns. Check out these great videos from Kimberly Baxter Packwood for more tips and tricks to get the most color out of your dyestuffs:
Prepping madder root”
Edited to add that in the video the instructions are to heat the madder in water, very slowly to “coax out the red colors” otherwise you will get oranges, yellows and brown. She said to bring it to a simmer over 1-2 hours.
“Pro-tip: Keep the madder below 200 degrees, around 180 is best. Any hotter and the red dye compounds will break down and your color will shift towards yellow and orange.”
“Something fun to try:
Madder will shift color as you change the pH of the water. Try dyeing up some samples in mason jars and vary the pH of the water with a little citric acid or soda ash. A lower acid pH (citric acid) will shift the color more orange, and higher more alkali pH (soda ash) will shift the color to bluer/darker hues.”
Has anyone achieved a blue soap this way?