1. Prep the fabric!
Choose a 100% natural fiber, like cotton. Make sure your garment is very clean. Choose a pot that will fit your garment, fill the pot with enough water to fully submerge the garment, then add salt at a ratio of 1 part salt : 16 parts water. Simmer this for about an hour, let cool to the touch, then gently squeeze to remove excess salt water. The salt will help the dye stick to the fabric, but you should expect that the color will fade over time.
2. Extract the dye! Choose the kitchen scraps that correspond with the color you are aiming for. Roughly chop the food until you have about 1-2 cups of material. Add it to an 8 qt stock pot, fill with water, sprinkle in some salt, bring to a boil, and simmer for at least an hour. When you’re satisfied with the color, scoop out the now-pale food bits (compost them!) and save the liquid.
3. Dye the fabric!
Place the salt-soaked fabric into the liquid dye, and simmer for about an hour. Then you can either remove the garment immediately, or let it cool in the dye bath overnight for deeper color. When you decide to remove the garment, rinse to remove any excess dye and hang to dry.
From now on, wash the garment in cold water to preserve its color.
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