I was trying for indirubin red with Japanese indigo….no success…yet!
Fresh leaves-chopped
Bring to boil in double boiler-will push to grey
Add the cloth as water bubbles, cloth should turn red as bubbles hit cloth.
Notes also said add more vinegar to push the red.
Now….no red but a very good moss green. Lightfastness still to be tested.
Samples
V= left overnight in vinegar
O= left overnight in JI stew + vinegar
Right hand sample pulled from pot & rinsed immediately.
Negative research is good. I will try again with a different method. This recipe boggled my mind as I don’t think of a process of Japanese Indigo with boiled water.
debmcclintock 
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