The Aerated Bread Company Ltd was founded in 1862 by Dr John Dauglish. It was set up to exploit his patented ‘carbonic acid gas method’ of fermentation which drastically reduced production time. The company’s first bakery was in Islington. A.B.C. as it became known is mostly remembered for its chain of self-service tea-rooms of which the first opened in 1865. At its peak it operated 150 retail bakery shops and 250 tea-rooms across the British Isles and was second in terms of outlets to J. Lyons and Co. Islington is an inner-city district in north London. ... Location of the British Isles The British Isles are a group of islands off the northwest coast of continental Europe consisting of Great Britain, Ireland, and several thousand smaller surrounding islands and islets. ... Joseph Lyons and Co. ...

The company was purchased by Allied Bakeries (now Associated British Foods plc) in 1955 and continued trading until the early eighties when the name disappeared. Associated British Foods PLC (LSE: ABF) is a British multinational with a multi-billion pound turnover. ...

The Dauglish fermentation method has since been rendered obsolete by the adoption of mechanical high speed dough processes.