In the old days, brewing beer was an unpredictable process that often resulted in undrinkable beer due to the phenomenon called ‘beer sickness’.
However, in 1883, Emil Chr. Hansen, head of the physiology department of the Carlsberg Research Laboratory, made a ground-breaking discovery that would revolutionize the brewing industry.
![](https://i.ytimg.com/vi/vbkD6mplz8s/maxresdefault.jpg)