About 15 years go I overhead a conversation between a Brit and an American sitting behind me on a coach. The Brit was trying to be appreciative about American culture, and mentioned that his favourite beer was Budweiser, but the American was having none of it. He told the Brit that one of the reasons for Budweiser's commercial success was that they had developed a process for making a product that could legally be sold as "beer" in just 5 days. Might not be true of course, maybe he was just passing on something he'd also overheard, but it does seem a lot like the beer equivalent of the Chorleywood bread making process, which reduced the time required to make "bread" to something like an hour.
Talking of nightmare beers, does anyone else remember that about 20 years ago there was press coverage of a beer which would be distributed in syrup form, and which the pub would reconstitute using fizzy water, the same as they already do with soft drinks? Did that ever happen?