How To Dye Blue With Black Beans (Iron Mordant)

How To Dye Blue With Black Beans - Tutorial

In this tutorial I’ll show you how to dye fabric blue with black beans.

 

You’ll need:

black bean dye blue on cotton

Soak 1 cup of black beans in enough water (more water won’t weaken the dye solution, but the fabric will dye more evenly). Be careful: the black beans will also stain your soaking pot, such as a porcelain bowl. Don’t ask me, how I know! 😉

natural black bean dye

Let the beans soak for about 24 hours.

Mordant your yarn or fabric with iron liquor.

natural black bean dye on cotton, iron mordant

Remove the beans from the dye solution (and use them for cooking). The dye solution is now dark blue. Soak the fabric or yarn in the dye solution as long as you like. Then rinse in water.

red cabbage dye sample
Red cabbage and black beans dye samples

I used cotton yarn and let it soak about 12 hours. The yarn dyed with black beans is darker than the yarn dyed with red cabbage.

Here are some dye experiments with black beans.

2 thoughts on “How To Dye Blue With Black Beans (Iron Mordant)

  1. Hi Lina, I’m from Spain- Canary Islands. So happy to read your blog, and I love this types of post !! I’m starting to learn about how to make a natural dye because I’m doing a grade of this on skillshare (maybe you are interested too) and I study Fashion Desing.

    In these days I will try to dye whit avocado and onion skins and black beans 🙂

    1. I’m glad you liked the post. 🙂 Have you already tried the natural dyes? And thanks for pointing me to skillshare – it sounds interesting.

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