Derek Prentice and brewing in the 1970s part 4

The last part of my interview with Derek Prentice. Discussing keg, tank and cask beer, continuous fermentation, parti-gyling, underlet mashing, craft beer and old beer styles, Truman Barley Wine, Burton Ale, Truman Tap Bitter, the end of Truman. Covering both the 1970s and 1980s.