Fancy a refreshing pint of betaglucanase? Or maybe a thirst-quenching glass of propylene glycol alginate? These chemicals do not sound remotely appealing. But if you have ever had a pint of cheap lager or ale, it is likely that you have sampled both of them.
Each is an additive commonly used in the production of mass market beer: betaglucanase can be used to speed up the brewing process, while propylene glycol alginate can be added to help stabilise a beer's head of foam.
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