En este episodio hablamos de uno de los cafés más malinterpretados: el descafeinado. ¿Cómo se elimina realmente la cafeína? ¿Se le quita a la planta? ¿Es cierto que el decaf pasa por un “tratamiento químico”? ¿Qué significan procesos como Sugarcane, Swiss Water, Mountain Water, methylene chloride, ethyl acetate o CO₂ supercrítico? La descafeinización es, fundamentalmente, un proceso físico de extracción y separación: la cafeína se moviliza desde el interior de la semilla y se retira utilizando diferentes medios y tecnologías. Y, también hablamos: ¿puede un café descafeinado ser specialty coffee? La cafeína es una molécula importante del café. Pero nunca fue la definición de specialty coffee. Referencias Koshiro, Y., Zheng, X.-Q., Wang, M.-L., Nagai, C., & Ashihara, H. (2006). Changes in content and biosynthetic activity of caffeine and trigonelline during growth and ripening of Coffea arabica and Coffea canephora fruits. Plant Science, 171(2), 242-250. Wright, G. A., Baker, D. D., Palmer, M. J., Stabler, D., Mustard, J. A., Power, E. F., Borland, A. M., & Stevenson, P. C. (2013). Caffeine in floral nectar enhances a pollinator’s memory of reward. Science, 339(6124), 1202-1204. Silvarolla, M. B., Mazzafera, P., & Fazuoli, L. C. (2004). A naturally decaffeinated arabica coffee. Nature, 429, 826. Pietsch, A. (2017). Decaffeination: Process and Quality. In The Craft and Science of Coffee, pp. 225-243. United States Code of Federal Regulations. 21 CFR §173.255, Methylene chloride. Current regulation verified August 2026.European Parliament and Council. Directive 2009/32/EC on extraction solvents used in the production of foodstuffs and food ingredients, Annex I.U.S. Food and Drug Administration. Food Additive Petition FAP 4A4839. Status under review, verified August 2026.United States Code of Federal Regulations. 21 CFR §173.228, Ethyl acetate.Descafecol S.A.S., Manizales, Colombia. Manufacturer technical documentation describing its spring-water and sugarcane-derived ethyl acetate process.CAFIVER S.A. de C.V., Ixtaczoquitlán, Veracruz, México. Manufacturer documentation identifying methylene chloride and ethyl acetate decaffeination technologies.Descamex, Córdoba, Veracruz, México. Manufacturer technical documentation for Mountain Water Process and methylene chloride decaffeination.Swiss Water Decaffeinated Coffee Inc. Technical documentation describing Green Coffee Extract, diffusion and activated-carbon filtration.Hiraga, Y., Yoshida, C., Aoki, K., & Watanabe, M. (2025). Efficient decaffeination of green coffee beans using pressure swing supercritical CO₂ extraction. Innovative Food Science & Emerging Technologies, 104, 104154.Park, H., Noh, E., Kim, M., & Lee, K.-G. (2024). Analysis of volatile and nonvolatile compounds in decaffeinated and regular coffee prepared under various roasting conditions. Food Chemistry, 435, 137543. Honda, M., Takezaki, D., Tanaka, M., Fukaya, M., & Goto, M. (2022). Effect of Roasting Degree on Major Coffee Compounds: A Comparative Study between Coffee Beans with and without Supercritical CO₂ Decaffeination Treatment. Journal of Oleo Science, 71(10), 1541-1550. Hiraga, Y., Nabe, M., Ando, M., Iwai, J., Matabe, A., Kishita, A., & Watanabe, M. (2026). Development of Process for Suppressing Elution of Sugars in Supercritical CO₂ Extraction for Decaffeination from Green Coffee Beans. Kagaku Kogaku Ronbunshu, 52(1), 1-10.Specialty Coffee Association. What Is Specialty Coffee? Current SCA definition, verified August 2026.U.S. Coffee Championships. U.S. Brewers Cup Champions. Weihong Zhang, 2024 Champion. Supporting published documentation identifies his competition coffee as a decaffeinated Typica from Finca Los Nogales, Colombia.U.S. Food and Drug Administration. Spilling the Beans: How Much Caffeine is Too Much? Current guidance stating that decaffeinated coffee typically contains approximately 2-15 mg of caffeine per 8-fluid-ounce cup.