Colorants accompany us in clothing, cosmetics, and food, but they are rarely associated with extreme living conditions. Meanwhile, some of the most promising pigments are produced by microorganisms that thrive at high temperatures. Thermophiles produce compounds with intense colors, remarkable stability, and potential health benefits—and they may help reduce the industry’s dependence on synthetic, petroleum-based dyes. Could these “heat-loving” microorganisms become the answer to the ecological challenges of modern production? This is the goal pursued by Zuzanna Jachowicz, who, within the E2Top program, studied the carotenoid composition of selected thermophilic microorganisms.