How to make 20,000 pints of beer.

Step 2 Preparation and control.

Malt must be milled, yeast grown and water boiled.

The remains of the milled malt go to be animal bedding - very little of anything is actually thrown away by Adnams.

In 2008, Adnams installed a whole new brew-house.  As well as being highly controllable and automated (in-line systems weigh out ingredients instead of sacks having to hefted in by hand), it also recycles the waste steam from the brewing process - it saves 30% on energy costs, but it also means that the brewery doesn't smell of brewing, which is a shame IMO.