How do you decaffeinate coffee?
If you’re partial to a cup of coffee minus the caffeine, then next time you’ve boiled the kettle you should raise your mug in memory of Friedlieb Ferdinand Runge.
Runge was a 19th-Century German chemist who had come to the attention of Goethe – the poet and statesman who was also a keen science scholar. Goethe had heard of Runge’s groundbreaking investigation into belladonna, otherwise known as nightshade. Runge had isolated the compound that caused eye muscles to dilate if it was ingested.
More: http://www.bbc.com/future/story/20180917-how-do-you-decaffeinate-coffee