How to Dye Textiles using Food Waste, with Circular Union | Learn how to dye your old textiles using natural sustainable dyes made from food waste at home. Give a new lease of life to your old, stained textiles and put your food waste to good use. This process is completely natural, harnessing the strong dying agent that is found in common foods. Mariah demonstrates two simple dye recipes that give a wide range of colours from dusty pink to mustard yellow. The only ingredients you need are avocado skin and pits, onion peel and water.