A person who bakes and sells cake is a 'baker' and 'bakery' is an establishment which produces and sells baked goods in Plymouth. The dry heat of baking changes the form of starches in the food and causes its outer surfaces to turn brown, giving it an attractive appearance and taste, while partially sealing the food's moisture.
In large factories in Plymouth, bakers produce bread and related products which are then transported to numerous selling points throughout a region. These normally include supermarkets, convenience baker stores, and the like. Bakers in Plymouth are largely there for quality control, as machines take care of much of the labor intensive aspect of the job.