Science, Maths & Technology
The science of alcohol
...care must be taken about when the lupulone is added to the boil. If added too early, it simply evaporates and the flavour is lost. [This shows the chemical structure of a beta acid known as lupulone.] Figure 4 Lupulone Look carefully at the structures of both components of the hops. Do you recognise a particular functional group? Both humulone and lupulone contain the...