Page "Porter (beer)" Paragraph 5

Porter is actually mentioned as early as 1721, but no writer before Feltham says it was made to replicate " three threads ".

Instead, it seems to be a more-aged development of the brown beers already being made in London.

Before 1700, London brewers sent out their beer very young and any aging was either performed by the publican or a dealer.

Porter was the first beer to be aged at the brewery and dispatched in a condition fit to be drunk immediately.

It was the first beer that could be made on any large scale, and the London porter brewers, such as Whitbread, Truman, Parsons and Thrale, achieved great success financially.