After all that heavy lecture stuff, it's time for a commercial break. And it's time for a glass of Mackeson's Milk Stout. You can still find tins of this if you search for it, but Mackeson from a tin somehow seems all wrong. It should be served in a bottle, in a dark Snug Bar, in an old back street pub. In the words of Bernard Miles in the old adverts : "It looks good, it tastes good, and by golly it does you good" I suppose such adverts these days would have to be accompanied by a statutory public health warning.
"Milk Stout" was brewed with the addition of lactose (a sugar derived from milk) which was not converted into alcohol during the fermentation process and thus made the resulting brew both relatively weak and very sweet. It was the brew favoured by elderly ladies and nursing mothers.