Beer in Scotland beers might be in the range 42/- to 48/- (42-48 shilling), Younger's brewery produced heavy beers ranging from 80/- to 160/-. The same shilling designation was used for beer of different types. Usher's, for example, in 1914 brewed both a 60/- (60 shilling) Mild and a 60/- Pale Ale. In 1909 Maclay brewed a 54/- Pale Ale and a 54/- Stout. In 1954 Steel Coulson were still producing both a 60/- Edinburgh Ale and a 60/- Brown Ale on draught, both with a gravity of 1030; the third draught beer was 70/- P.X.A. at 1034. By the 1950s customers would
Old ale secondary fermentation with brettanomyces yeast which was present either in the pitching yeast or in the wooden equipment. Because of the time required for the aging process, some investors would buy mild ale from brewers, age it into old ale, and sell it at the higher price. Eventually, brewers began to keep some beer behind at the brewery, age it themselves and sell it to the pubs. In some cases old ale was a blend of young and old. The "stock ale" was the brewery's very aged ale and was used to inject an "old" quality, and perhaps acidity to