Siblings Mark and Hannah Al Shemmeri founded Dialect Coffee in 2022, setting up a small 1 kilogram sample roaster on a table at Attic Brew Co's taproom in Stirchley, Birmingham. Mark brings an Engineering Doctorate from the University of Birmingham's School of Chemical Engineering, where his research focused on heat and mass transfer in coffee roasting, sponsored by Jacobs Douwe Egberts. After a period as roasting nomads, partnering with established roasteries including Hasbean and The Coffee Wizards during quiet hours, the operation is now based in the Netherlands, roasting at partner facilities while maintaining its agile, nomadic model. Dialect specializes in single origin, single farmer lot coffees with experimental processing techniques including anaerobic fermentation, carbonic maceration, and thermal shock treatment.