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Brewed coffee grounds offer sustainable alternative for clothing dye

from Phys.org

Iowa State University researchers have found a natural way to add color to clothing using the leftover grounds from your daily cup of coffee. The textile industry uses more than 2 million tons of chemicals and synthetic dyes annually, which is why researchers are interested in finding sustainable alternatives. Changhyun "Lyon" Nam says his coffee habit inspired him to experiment with the grounds. more


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