A popular interstellar beverage similar to coffee on Blue Planet, boosting alertness, focus, and work efficiency. It can be hand-ground or instant powder. Karkas residues are waste from grinding beans and have many uses: plant fertilizer, deodorizer, cleaner, scrub, hand wash, wrinkle remover, sachets, insect repellent, natural dye. They can also be brewed with water to make a milder Karkas drink.