MAR 25, 2018 10:44 PM PDT

Decaffeinating Coffee

WRITTEN BY: Nouran Amin

It is possible to decaffeinate coffee in more than process. The first way was created by Ludwig Roselius in 1905 where he used benzene to remove caffeine from green coffee beans. However, a modern version of this process is more safe and effective. Another method is known as "water processing decaffeination". This process uses water as the solvent to remove caffeine from the green coffee beans. However, this method although natural doesn't always remove all the caffeine, typically 95% or less. The second method is known as the "direct solvent decaffeination method". Modern ways of this method utilizes methylene chloride (predominately in Europe), coffee oil, or ethyl acetate to dissolve the caffeine thus extracting it from the beans. The third and last approach to the decaffeination method is supercritical carbon dioxide method. This method is similar to direct solvent decaffeination except that for this particular approach, carbon dioxide is utilized as the solvent.
About the Author
  • Nouran earned her BS and MS in Biology at IUPUI and currently shares her love of science by teaching. She enjoys writing on various topics as well including science & medicine, global health, and conservation biology. She hopes through her writing she can make science more engaging and communicable to the general public.
You May Also Like
JUL 18, 2020
Space & Astronomy
Closest Ever Images of the Sun Expose Previously Unknown Features
JUL 18, 2020
Closest Ever Images of the Sun Expose Previously Unknown Features
New images from the Solar Orbiter, a joint project between NASA and the European Space Agency (ESA) that launched in Feb ...
JUL 19, 2020
Drug Discovery & Development
Study Finds Turmeric has Antiviral Effects
JUL 19, 2020
Study Finds Turmeric has Antiviral Effects
Researchers from the Wuhan University of Engineering in China have found that curcumin, a natural compound found in turm ...
JUL 26, 2020
Space & Astronomy
Scientists Reveal the Biggest-Ever 3D Map of the Universe
JUL 26, 2020
Scientists Reveal the Biggest-Ever 3D Map of the Universe
After five years of research, an international team over 100 astrophysicists from around 30 institutions worldwide has r ...
AUG 20, 2020
Health & Medicine
New Method to Detect Microplastics in Human Tissues
AUG 20, 2020
New Method to Detect Microplastics in Human Tissues
Microplastics make headlines frequently these days, and a discovery from Arizona State University (ASU) researchers is b ...
AUG 21, 2020
Chemistry & Physics
Earth's Outer Core, in the Middle of a Laboratory
AUG 21, 2020
Earth's Outer Core, in the Middle of a Laboratory
Deep underneath our feet lies Earth's outer core, a fluid layer over two thousand kilometers (1,500 mi) in thickness ...
NOV 07, 2020
Space & Astronomy
Scientists Discover Planet with Atmosphere of Vaporized Rock
NOV 07, 2020
Scientists Discover Planet with Atmosphere of Vaporized Rock
Researchers have identified an exoplanet that appears to have an atmosphere composed of vaporized rock and oceans runnin ...
Loading Comments...