Natural Dyeing with Coffee, Turmeric, Onion Skins, Blueberries

So today I'm trying a fun natural dye project using coffee, turmeric, spirulina, wild blueberries, and yellow onion skins. I've never tried this before so there may be some trial and error but here we go. I'm starting off with coffee and I just put the grounds and some water in my teapot and then strain it out. So I need a mordant which will allow the dye to adhere to the cotton. I'm using aluminum and I just add in about a teaspoon or so per dye bath. And I'm just using 100% cotton. You want to make sure it's either 100% cotton or another natural fiber. The natural dyes will not adhere to synthetic fabric. I have pre-soaked my fabric so it's go. I'm going to put it in. And you can leave it in as long as you'd like to get the color that you desire. I did all of these at different lengths so you'll just have to kind of experiment and see what kind of shades you like. For the turmeric I just again put the turmeric in some water, brought it to a boil, and then I just strained it out using my almond milk bag. So stir frequently and just let the color deepen until it's the desired shade. Here's the onion skin dye bath. I just soaked the onion skins in a pot, brought it to a boil, and then filtered it through into this pot. Here's the wild blueberry dye bath. So now I'm just going to transfer from the dye bath to a bowl filled with water. And I will just continue rinsing these until the water runs clear. The spirulina turned out to be a huge fail and it did not produce any color. It just made these blotches on the shirts so I ended up using this old green dye that I had to just kind of cover the blotches and salvage the shirts somewhat. So this is the wild blueberry. Such a lovely shade. The turmeric, as you can see the boys have already been wearing these and staining them but that's what they're for right? Here's the coffee and the yellow onion skin which is my personal favorite.