Funny, I'm actually doing the same thing. I started with heating an annotto infusion last night, then this morning was starting one for paprika and accidentally picked up the annotto bottle again. So now I have two annotto infusions and on paprika infusion going. Jeez! At least I knew what happened right away, but had already begun the pouring the spice into the jar of oil before I could stop myself. My brain->nerve pathway->muscle response is a little slow sometimes.
I need to go get my manjistha because I want to start an infusion of it as well. At least I am confident it is where it belongs, with the rest of the natural colorants. But I keep the paprika in my freezer because it can grow bugs if left in the spice cupboard and I love it on deviled eggs as long as nothing is moving around when I look inside the bottle. Yuck! I guess it wouldn't matter for soap but still, I hate bugs in my foodstuffs!
So I just realized in one of my efforts to clean out the excess jars & bottles in my cupboard, I now don't have enough jars for many oils infusions and for leftover food that I store in jars after a meal. Well, at least that prevents me from going overboard with the oil infusions this time around.
I have not tried the matcha tea powder yet, except to drink it. I'd like to try it as an oil infusion and as added to the lye solution, but right now I want to concentrate on the warmer tones given a project I have in mind and my limited number of jars and my mind doesn't need to try to do too much at once.
My goal is to test these colors side-by side as oil infusion only, as lye solution mixed only and as both lye mixed + oil infusion to see what kinds of results I will get with color. I had fabulous results with manjistha before, but didn't do any extensive color testing. This time around I hope to be more scientific in my method.
I wish there were more options for red tones besides dead bugs.