According to Dominique Cardon, a common recipe for red in the 1700s was to dye first with madder, and then overdye with cochineal. Cochineal gives a luscious color but was quite expensive. Using this recipe, very little cochineal is needed. I used this recipe to dye the silk for the sash, hoping for a color that is very close to the original.
Madder is quite sensitive to temperature. Too hot and the color shifts to an orange brown. I kept a thermometer in the pot to keep tabs on the temperature.
The skein looks dark here, but the color is always more intense when wet and in the pot. I had several little sample pieces that I could take out and quickly dry to check the color.
Now I wait for the skein to dry. Tomorrow I’ll set the warp on my frame.